NXP S08QE Reference guide

HCS08

Microcontrollers

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M

MC9S08QE128

MC9S08QE96

MC9S08QE64

Reference Manual

MC9S08QE128RM

Rev. 2

6/2007

Related Documentation:

• MC9S08QE128 (Data Sheet)

Contains pin assignments and diagrams, all electrical

speciﬁcations, and mechanical drawing outlines.

Find the most current versions of all documents at:

http://www.freescale.com

MC9S08QE128 Series Features

8-Bit HCS08 Central Processor Unit (CPU)

• Up to 50.33-MHz HCS08 CPU from 3.6 V to 2.1 V, and

20-MHz CPU at 2.1 V to 1.8 V across temperature range

of –40˚C to 85˚C

• HC08 instruction set with added BGND instruction

• Support for up to 32 interrupt/reset sources

On-Chip Memory

• Flash read/program/erase over full operating voltage and

temperature

• Random-access memory (RAM)

• Security circuitry to preventunauthorized access to RAM

and ﬂash contents

Power-Saving Modes

• Two very low power stop modes, one of which allows

limited use of peripherals

• Reduced power wait mode

• Peripheral clock enable register can disable clocks to

unused modules, thereby reducingcurrents;allows clocks

to remain enabled to speciﬁc peripherals in stop3 mode

• Very low power external oscillator that can be used in

stop3 mode to provide accurate clock source to active

peripherals

• Very low power real time counter for use in run, wait, and

stop modes with internal and external clock sources

•6μs typical wake up time from stop3 mode

Clock Source Options

• Oscillator (XOSC) — Loop-control Pierce oscillator;

crystal or ceramic resonator range of 31.25 kHz to

38.4 kHz or 1 MHz to 16 MHz

• Internal Clock Source (ICS) — Internal clock source

module containing a frequency-locked-loop (FLL)

controlled by internal or external reference; precision

trimming ofinternalreferenceallows0.2%resolutionand

2%deviationovertemperatureand voltage;supportsCPU

frequencies from 2 MHz to 50.33 MHz

System Protection

• Watchdog computer operating properly (COP) reset with

option to run from dedicated 1-kHz internal clock source

or bus clock

• Low-voltage detection with reset or interrupt; selectable

trip points

• Illegal opcode detection with reset

• Flash block protection

Development Support

• Single-wire background debug interface

• Breakpoint capability to allow single breakpoint setting

duringin-circuitdebugging(plustwo more breakpointsin

on-chip debug module)

• On-chip in-circuit emulator (ICE) debug module

containing three comparators and nine trigger modes.

Eightdeep FIFOforstoring change-of-ﬂowaddressesand

event-only data. Debug module supports both tag and

force breakpoints.

Peripherals

• ADC — 24-channel, 12-bit resolution; 2.5 μs conversion

time; automatic compare function; 1.7 mV/°C

temperature sensor; internal bandgap reference channel;

operation in stop3; fully functional from 3.6 V to 1.8 V

• ACMPx — Two analog comparators with selectable

interrupt on rising, falling, or either edge of comparator

output; compare option to ﬁxed internal bandgap

reference voltage; outputs can be optionally routed to

TPM module; operation in stop3

• SCIx — Two full duplex non-return to zero (NRZ); LIN

master extended break generation; LIN slave extended

break detection; wake up on active edge

• SPIx— Two serial peripheral interfaces with full-duplex

or single-wire bidirectional; double-buffered transmit and

receive; master or slave mode; MSB-ﬁrst or LSB-ﬁrst

shifting

• IICx — Two IICs with; up to 100 kbps with maximum

bus loading; multi-master operation; programmable slave

address; interrupt driven byte-by-byte data transfer;

supports broadcast mode and 10 bit addressing

• TPMx — One 6-channel (TPM3) and two 3-channel

(TPM1 and TPM2); Selectable input capture, output

compare, or buffered edge- or center-aligned PWM on

each channel

• RTC — (Real-time counter) 8-bit modulus counter with

binary or decimal based prescaler; external clock source

for precise time base, time-of-day, calendar or task

scheduling functions; free running on-chip low power

oscillator (1 kHz) for cyclic wake-up without external

components; runs in all MCU modes

Input/Output

• 70 GPIOs and 1 input-only and 1 output only pin

• 16 KBI interrupts with selectable polarity

• Hysteresis and conﬁgurable pull up device on all input

pins; conﬁgurable slew rate and drive strength on all

output pins.

• SET/CLR registers on 16 pins (PTC and PTE)

Package Options

• 80-LQFP, 64-LQFP, 48-QFN, 44-QFP, 32-LQFP

Get the latest version from freescale.com

MC9S08QE128 Reference Manual

Covers MC9S08QE128

MC9S08QE96

MC9S08QE64

MC9S08QE128RM

Rev. 2

6/2007

Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc.

Revision History

To provide the most up-to-date information, the revision of our documents on the World Wide Web will be

the most current. Your printed copy may be an earlier revision. To verify you have the latest information

available, refer to:

http://freescale.com/

The following revision history table summarizes changes contained in this document.

Revision

Number

Revision

Date

Description of Changes

1 30 Apr 2007 Initial preliminary release

2 25 Jun 2007 Initial public release

This product incorporates SuperFlash

®

Technology licensed from SST.

MC9S08QE128 MCU Series Reference Manual, Rev. 2

Freescale Semiconductor 7

List of Chapters

Chapter 1 Device Overview..............................................................................19

Chapter 2 Pins and Connections.....................................................................25

Chapter 3 Modes of Operation.........................................................................39

Chapter 4 Memory.............................................................................................51

Chapter 5 Resets, Interrupts, and General System Control..........................89

Chapter 6 Parallel Input/Output Control........................................................111

Chapter 7 Keyboard Interrupt (S08KBIV2)....................................................139

Chapter 8 Central Processor Unit (S08CPUV4)............................................145

Chapter 9 Analog Comparator 3V (ACMPVLPV1) ........................................167

Chapter 10 Analog-to-Digital Converter (S08ADC12V1)................................175

Chapter 11 Internal Clock Source (S08ICSV3) ...............................................203

Chapter 12 Inter-Integrated Circuit (S08IICV2)...............................................217

Chapter 13 Real-Time Counter (S08RTCV1)...................................................237

Chapter 14 Serial Communications Interface (S08SCIV4).............................247

Chapter 15 Serial Peripheral Interface (S08SPIV3) ........................................267

Chapter 16 Timer/Pulse-Width Modulator (S08TPMV3).................................283

Chapter 17 Development Support ...................................................................307

Chapter 18 Debug Module (DBG) (128K).........................................................321

MC9S08QE128 MCU Series Reference Manual, Rev. 2

Freescale Semiconductor 9

Contents

Section Number Title Page

Chapter 1

Device Overview

1.1 Devices in the MC9S08QE128 Series .............................................................................................19

1.2 MCU Block Diagram ......................................................................................................................20

1.3 System Clock Distribution ..............................................................................................................23

Chapter 2

Pins and Connections

2.1 Device Pin Assignment ...................................................................................................................25

2.2 Recommended System Connections ...............................................................................................31

2.2.1 Power ................................................................................................................................33

2.2.2 Oscillator ...........................................................................................................................33

2.2.3

RESET and RSTO ............................................................................................................33

2.2.4 Background / Mode Select (BKGD/MS) ..........................................................................34

2.2.5 ADC Reference Pins (V

REFH

, V

REFL

) ..............................................................................35

2.2.6 General-Purpose I/O and Peripheral Ports ........................................................................35

Chapter 3

Modes of Operation

3.1 Introduction .....................................................................................................................................39

3.2 Features ...........................................................................................................................................39

3.3 Run Mode ........................................................................................................................................39

3.3.1 Low Power Run Mode (LPRun) .......................................................................................39

3.4 Active Background Mode ................................................................................................................41

3.5 Wait Mode .......................................................................................................................................42

3.5.1 Low Power Wait Mode (LPWait) ......................................................................................42

3.6 Stop Modes ......................................................................................................................................42

3.6.1 Stop2 Mode .......................................................................................................................43

3.6.2 Stop3 Mode .......................................................................................................................44

3.6.3 Active BDM Enabled in Stop Mode .................................................................................45

3.6.4 LVD Enabled in Stop Mode ..............................................................................................45

3.6.5 Stop modes in Low Power Run Mode ..............................................................................45

3.7 Mode Selection ................................................................................................................................45

3.7.1 On-Chip Peripheral Modules in Stop and Low Power Modes ..........................................48

Chapter 4

Memory

4.1 MC9S08QE128 Series Memory Map .............................................................................................51

4.2 Reset and Interrupt Vector Assignments .........................................................................................53

MC9S08QE128 MCU Series Reference Manual, Rev. 2

10 Freescale Semiconductor

Section Number Title Page

4.3 Register Addresses and Bit Assignments ........................................................................................55

4.4 Memory Management Unit .............................................................................................................63

4.4.1 Features .............................................................................................................................63

4.4.2 Register Deﬁnition ............................................................................................................63

4.4.3 Functional Description ......................................................................................................66

4.5 RAM ................................................................................................................................................69

4.6 Flash ................................................................................................................................................69

4.6.1 Features .............................................................................................................................70

4.6.2 Register Descriptions ........................................................................................................70

4.6.3 Functional Description ......................................................................................................77

4.6.4 Operating Modes ...............................................................................................................86

4.6.5 Flash Module Security ......................................................................................................86

4.6.6 Resets ................................................................................................................................88

Chapter 5

Resets, Interrupts, and General System Control

5.1 Introduction .....................................................................................................................................89

5.2 Features ...........................................................................................................................................89

5.3 MCU Reset ......................................................................................................................................89

5.4 Computer Operating Properly (COP) Watchdog .............................................................................90

5.5 Interrupts .........................................................................................................................................91

5.5.1 Interrupt Stack Frame .......................................................................................................92

5.5.2 External Interrupt Request (IRQ) Pin ...............................................................................92

5.5.3 Interrupt Vectors, Sources, and Local Masks ....................................................................93

5.6 Low-Voltage Detect (LVD) System ................................................................................................96

5.6.1 Power-On Reset Operation ...............................................................................................96

5.6.2 Low-Voltage Detection (LVD) Reset Operation ...............................................................96

5.6.3 Low-Voltage Detection (LVD) Interrupt Operation ..........................................................96

5.6.4 Low-Voltage Warning (LVW) Interrupt Operation ...........................................................96

5.7 Peripheral Clock Gating ..................................................................................................................96

5.8 Reset, Interrupt, and System Control Registers and Control Bits ...................................................98

5.8.1 Interrupt Pin Request Status and Control Register (IRQSC) ............................................98

5.8.2 System Reset Status Register (SRS) .................................................................................99

5.8.3 System Background Debug Force Reset Register (SBDFR) ..........................................100

5.8.4 System Options Register 1 (SOPT1) ..............................................................................101

5.8.5 System Options Register 2 (SOPT2) ..............................................................................102

5.8.6 System Device Identiﬁcation Register (SDIDH, SDIDL) ..............................................103

5.8.7 System Power Management Status and Control 1 Register (SPMSC1) .........................104

5.8.8 System Power Management Status and Control 2 Register (SPMSC2) .........................105

5.8.9 System Power Management Status and Control 3 Register (SPMSC3) .........................106

5.8.10 System Clock Gating Control 1 Register (SCGC1) ........................................................107

5.8.11 System Clock Gating Control 2 Register (SCGC2) ........................................................108

MC9S08QE128 MCU Series Reference Manual, Rev. 2

Freescale Semiconductor 11

Section Number Title Page

Chapter 6

Parallel Input/Output Control

6.1 Port Data and Data Direction ........................................................................................................111

6.2 Pull-up, Slew Rate, and Drive Strength .........................................................................................112

6.2.1 Port Internal Pull-Up Enable ...........................................................................................112

6.2.2 Port Slew Rate Enable ....................................................................................................112

6.2.3 Port Drive Strength Select ...............................................................................................112

6.3 Port Data Set, Clear and Toggle Data Registers ............................................................................113

6.3.1 Port Data Set Registers ...................................................................................................114

6.3.2 Port Data Clear Registers ................................................................................................114

6.3.3 Port Data Toggle Register ...............................................................................................114

6.4 Pin Behavior in Stop Modes ..........................................................................................................114

6.5 Parallel I/O and Pin Control Registers ..........................................................................................114

6.5.1 Port A Registers ..............................................................................................................115

6.5.2 Port B Registers ..............................................................................................................117

6.5.3 Port C Registers ..............................................................................................................119

6.5.4 Port D Registers ..............................................................................................................123

6.5.5 Port E Registers ...............................................................................................................125

6.5.6 Port F Registers ...............................................................................................................129

6.5.7 Port G Registers ..............................................................................................................131

6.5.8 Port H Registers ..............................................................................................................133

6.5.9 Port J Registers ...............................................................................................................135

Chapter 7

Keyboard Interrupt (S08KBIV2)

7.1 Introduction ...................................................................................................................................139

7.1.1 KBI Clock Gating ...........................................................................................................139

7.1.2 Features ...........................................................................................................................139

7.1.3 Modes of Operation ........................................................................................................139

7.1.4 Block Diagram ................................................................................................................140

7.2 External Signal Description ..........................................................................................................140

7.3 Register Deﬁnition ........................................................................................................................141

7.3.1 KBI Interrupt Status and Control Register (KBIxSC) ....................................................141

7.3.2 KBI Interrupt Pin Select Register (KBIxPE) ..................................................................142

7.3.3 KBI Interrupt Edge Select Register (KBIxES) ...............................................................142

7.4 Functional Description ..................................................................................................................142

7.4.1 Edge Only Sensitivity .....................................................................................................143

7.4.2 Edge and Level Sensitivity ..............................................................................................143

7.4.3 Pull-Up/Pull-Down Resistors ..........................................................................................143

7.4.4 Keyboard Interrupt Initialization ....................................................................................143

MC9S08QE128 MCU Series Reference Manual, Rev. 2

12 Freescale Semiconductor

Section Number Title Page

Chapter 8

Central Processor Unit (S08CPUV4)

8.1 Introduction ...................................................................................................................................145

8.1.1 Features ...........................................................................................................................145

8.2 Programmer’s Model and CPU Registers .....................................................................................146

8.2.1 Accumulator (A) .............................................................................................................146

8.2.2 Index Register (H:X) .......................................................................................................146

8.2.3 Stack Pointer (SP) ...........................................................................................................147

8.2.4 Program Counter (PC) ....................................................................................................147

8.2.5 Condition Code Register (CCR) .....................................................................................147

8.3 Addressing Modes .........................................................................................................................149

8.3.1 Inherent Addressing Mode (INH) ...................................................................................149

8.3.2 Relative Addressing Mode (REL) ...................................................................................149

8.3.3 Immediate Addressing Mode (IMM) ..............................................................................149

8.3.4 Direct Addressing Mode (DIR) ......................................................................................150

8.3.5 Extended Addressing Mode (EXT) ................................................................................150

8.3.6 Indexed Addressing Mode ..............................................................................................150

8.4 Special Operations .........................................................................................................................151

8.4.1 Reset Sequence ...............................................................................................................151

8.4.2 Interrupt Sequence ..........................................................................................................151

8.4.3 Wait Mode Operation ......................................................................................................152

8.4.4 Stop Mode Operation ......................................................................................................152

8.4.5 BGND Instruction ...........................................................................................................153

8.5 HCS08 Instruction Set Summary ..................................................................................................155

Chapter 9

Analog Comparator 3V (ACMPVLPV1)

9.1 Introduction ...................................................................................................................................167

9.1.1 ACMP Conﬁguration Information ..................................................................................167

9.1.2 ACMP/TPM Conﬁguration Information .........................................................................167

9.1.3 ACMP Clock Gating .......................................................................................................167

9.1.4 Interrupt Vectors ..............................................................................................................168

9.1.5 Features ...........................................................................................................................170

9.1.6 Modes of Operation ........................................................................................................170

9.1.7 Block Diagram ................................................................................................................170

9.2 External Signal Description ..........................................................................................................171

9.3 Register Deﬁnition ........................................................................................................................171

9.3.1 ACMPx Status and Control Register (ACMPxSC) .........................................................172

9.4 Functional Description ..................................................................................................................173

MC9S08QE128 MCU Series Reference Manual, Rev. 2

Freescale Semiconductor 13

Section Number Title Page

Chapter 10

Analog-to-Digital Converter (S08ADC12V1)

10.1 Introduction ...................................................................................................................................175

10.1.1 ADC Clock Gating ..........................................................................................................175

10.1.2 Module Conﬁgurations ...................................................................................................177

10.1.3 Features ...........................................................................................................................179

10.1.4 Block Diagram ................................................................................................................179

10.2 External Signal Description ..........................................................................................................180

10.2.1 Analog Power (V

DDAD

) ..................................................................................................181

10.2.2 Analog Ground (V

SSAD

) .................................................................................................181

10.2.3 Voltage Reference High (V

REFH

) ...................................................................................181

10.2.4 Voltage Reference Low (V

REFL

) .....................................................................................181

10.2.5 Analog Channel Inputs (ADx) ........................................................................................181

10.3 Register Deﬁnition ........................................................................................................................181

10.3.1 Status and Control Register 1 (ADCSC1) ......................................................................181

10.3.2 Status and Control Register 2 (ADCSC2) ......................................................................183

10.3.3 Data Result High Register (ADCRH) .............................................................................184

10.3.4 Data Result Low Register (ADCRL) ..............................................................................184

10.3.5 Compare Value High Register (ADCCVH) ....................................................................185

10.3.6 Compare Value Low Register (ADCCVL) .....................................................................185

10.3.7 Conﬁguration Register (ADCCFG) ................................................................................185

10.3.8 Pin Control 1 Register (APCTL1) ..................................................................................187

10.3.9 Pin Control 2 Register (APCTL2) ..................................................................................188

10.3.10Pin Control 3 Register (APCTL3) ..................................................................................189

10.4 Functional Description ..................................................................................................................190

10.4.1 Clock Select and Divide Control ....................................................................................190

10.4.2 Input Select and Pin Control ...........................................................................................191

10.4.3 Hardware Trigger ............................................................................................................191

10.4.4 Conversion Control .........................................................................................................191

10.4.5 Automatic Compare Function .........................................................................................194

10.4.6 MCU Wait Mode Operation ............................................................................................194

10.4.7 MCU Stop3 Mode Operation ..........................................................................................194

10.4.8 MCU Stop1 and Stop2 Mode Operation .........................................................................195

10.5 Initialization Information ..............................................................................................................195

10.5.1 ADC Module Initialization Example .............................................................................195

10.6 Application Information ................................................................................................................197

10.6.1 External Pins and Routing ..............................................................................................197

10.6.2 Sources of Error ..............................................................................................................199

MC9S08QE128 MCU Series Reference Manual, Rev. 2

14 Freescale Semiconductor

Section Number Title Page

Chapter 11

Internal Clock Source (S08ICSV3)

11.1 Introduction ...................................................................................................................................203

11.1.1 External Oscillator ..........................................................................................................203

11.1.2 Stop2 Mode Considerations ............................................................................................203

11.1.3 Features ...........................................................................................................................205

11.1.4 Block Diagram ................................................................................................................205

11.1.5 Modes of Operation ........................................................................................................206

11.2 External Signal Description ..........................................................................................................207

11.3 Register Deﬁnition ........................................................................................................................207

11.3.1 ICS Control Register 1 (ICSC1) .....................................................................................208

11.3.2 ICS Control Register 2 (ICSC2) .....................................................................................209

11.3.3 ICS Trim Register (ICSTRM) .........................................................................................209

11.3.4 ICS Status and Control (ICSSC) .....................................................................................210

11.4 Functional Description ..................................................................................................................212

11.4.1 Operational Modes ..........................................................................................................212

11.4.2 Mode Switching ..............................................................................................................214

11.4.3 Bus Frequency Divider ...................................................................................................215

11.4.4 Low Power Bit Usage .....................................................................................................215

11.4.5 DCO Maximum Frequency with 32.768 kHz Oscillator ................................................215

11.4.6 Internal Reference Clock ................................................................................................215

11.4.7 External Reference Clock ...............................................................................................216

11.4.8 Fixed Frequency Clock ...................................................................................................216

11.4.9 Local Clock .....................................................................................................................216

Chapter 12

Inter-Integrated Circuit (S08IICV2)

12.1 Introduction ...................................................................................................................................217

12.1.1 Module Conﬁguration .....................................................................................................217

12.1.2 Interrupt Vectors ..............................................................................................................217

12.1.3 Features ...........................................................................................................................219

12.1.4 Modes of Operation ........................................................................................................219

12.1.5 Block Diagram ................................................................................................................220

12.2 External Signal Description ..........................................................................................................220

12.2.1 SCL — Serial Clock Line ...............................................................................................220

12.2.2 SDA — Serial Data Line ................................................................................................220

12.3 Register Deﬁnition ........................................................................................................................221

12.3.1 IIC Address Register (IICxA) .........................................................................................221

12.3.2 IIC Frequency Divider Register (IICxF) .........................................................................222

12.3.3 IIC Control Register (IICxC1) ........................................................................................224

12.3.4 IIC Status Register (IICxS) .............................................................................................225

12.3.5 IIC Data I/O Register (IICxD) ........................................................................................226

MC9S08QE128 MCU Series Reference Manual, Rev. 2

Freescale Semiconductor 15

Section Number Title Page

12.3.6 IIC Control Register 2 (IICxC2) .....................................................................................227

12.4 Functional Description ..................................................................................................................228

12.4.1 IIC Protocol .....................................................................................................................228

12.4.2 10-bit Address .................................................................................................................232

12.4.3 General Call Address ......................................................................................................233

12.5 Resets ............................................................................................................................................233

12.6 Interrupts .......................................................................................................................................233

12.6.1 Byte Transfer Interrupt ....................................................................................................233

12.6.2 Address Detect Interrupt .................................................................................................233

12.6.3 Arbitration Lost Interrupt ................................................................................................233

12.7 Initialization/Application Information ..........................................................................................235

Chapter 13

Real-Time Counter (S08RTCV1)

13.1 Introduction ...................................................................................................................................237

13.1.1 ADC Hardware Trigger ..................................................................................................237

13.1.2 RTC Clock Sources .........................................................................................................237

13.1.3 RTC Modes of Operation ................................................................................................237

13.1.4 RTC Clock Gating ...........................................................................................................237

13.1.5 Interrupt Vector ...............................................................................................................238

13.1.6 Features ...........................................................................................................................240

13.1.7 Modes of Operation ........................................................................................................240

13.1.8 Block Diagram ................................................................................................................241

13.2 External Signal Description ..........................................................................................................241

13.3 Register Deﬁnition ........................................................................................................................241

13.3.1 RTC Status and Control Register (RTCSC) ....................................................................242

13.3.2 RTC Counter Register (RTCCNT) ..................................................................................243

13.3.3 RTC Modulo Register (RTCMOD) ................................................................................243

13.4 Functional Description ..................................................................................................................244

13.4.1 RTC Operation Example .................................................................................................245

13.5 Initialization/Application Information ..........................................................................................245

Chapter 14

Serial Communications Interface (S08SCIV4)

14.1 Introduction ...................................................................................................................................247

14.1.1 SCI Clock Gating ............................................................................................................247

14.1.2 Interrupt Vectors ..............................................................................................................247

14.1.3 Features ...........................................................................................................................250

14.1.4 Modes of Operation ........................................................................................................250

14.1.5 Block Diagram ................................................................................................................251

14.2 Register Deﬁnition ........................................................................................................................253

14.2.1 SCI Baud Rate Registers (SCIxBDH, SCIxBDL) ..........................................................253

MC9S08QE128 MCU Series Reference Manual, Rev. 2

16 Freescale Semiconductor

Section Number Title Page

14.2.2 SCI Control Register 1 (SCIxC1) ...................................................................................254

14.2.3 SCI Control Register 2 (SCIxC2) ...................................................................................255

14.2.4 SCI Status Register 1 (SCIxS1) ......................................................................................256

14.2.5 SCI Status Register 2 (SCIxS2) ......................................................................................258

14.2.6 SCI Control Register 3 (SCIxC3) ...................................................................................259

14.2.7 SCI Data Register (SCIxD) .............................................................................................260

14.3 Functional Description ..................................................................................................................260

14.3.1 Baud Rate Generation .....................................................................................................260

14.3.2 Transmitter Functional Description ................................................................................261

14.3.3 Receiver Functional Description .....................................................................................262

14.3.4 Interrupts and Status Flags ..............................................................................................264

14.3.5 Additional SCI Functions ...............................................................................................265

Chapter 15

Serial Peripheral Interface (S08SPIV3)

15.1 Introduction ...................................................................................................................................267

15.1.1 SPI Clock Gating ............................................................................................................267

15.1.2 Interrupt Vector ...............................................................................................................267

15.1.3 Features ...........................................................................................................................269

15.1.4 Block Diagrams ..............................................................................................................269

15.1.5 SPI Baud Rate Generation ..............................................................................................271

15.2 External Signal Description ..........................................................................................................272

15.2.1 SPSCK — SPI Serial Clock ............................................................................................272

15.2.2 MOSI — Master Data Out, Slave Data In ......................................................................272

15.2.3 MISO — Master Data In, Slave Data Out ......................................................................272

15.2.4

SS — Slave Select ...........................................................................................................272

15.3 Modes of Operation .......................................................................................................................273

15.3.1 SPI in Stop Modes ..........................................................................................................273

15.4 Register Deﬁnition ........................................................................................................................273

15.4.1 SPI Control Register 1 (SPIxC1) ....................................................................................273

15.4.2 SPI Control Register 2 (SPIxC2) ....................................................................................274

15.4.3 SPI Baud Rate Register (SPIxBR) ..................................................................................275

15.4.4 SPI Status Register (SPIxS) ............................................................................................276

15.4.5 SPI Data Register (SPIxD) ..............................................................................................277

15.5 Functional Description ..................................................................................................................278

15.5.1 SPI Clock Formats ..........................................................................................................278

15.5.2 SPI Interrupts ..................................................................................................................281

15.5.3 Mode Fault Detection .....................................................................................................281

Chapter 16

Timer/Pulse-Width Modulator (S08TPMV3)

16.1 Introduction ...................................................................................................................................283

MC9S08QE128 MCU Series Reference Manual, Rev. 2

Freescale Semiconductor 17

Section Number Title Page

16.1.1 ACMP/TPM Conﬁguration Information .........................................................................283

16.1.2 TPM Clock Gating ..........................................................................................................283

16.1.3 Interrupt Vector ...............................................................................................................283

16.1.4 Features ...........................................................................................................................285

16.1.5 Modes of Operation ........................................................................................................285

16.1.6 Block Diagram ................................................................................................................286

16.2 Signal Description .........................................................................................................................288

16.2.1 Detailed Signal Descriptions ...........................................................................................288

16.3 Register Deﬁnition ........................................................................................................................292

16.3.1 TPM Status and Control Register (TPMxSC) ................................................................292

16.3.2 TPM-Counter Registers (TPMxCNTH:TPMxCNTL) ....................................................293

16.3.3 TPM Counter Modulo Registers (TPMxMODH:TPMxMODL) ....................................294

16.3.4 TPM Channel n Status and Control Register (TPMxCnSC) ..........................................295

16.3.5 TPM Channel Value Registers (TPMxCnVH:TPMxCnVL) ..........................................296

16.4 Functional Description ..................................................................................................................298

16.4.1 Counter ............................................................................................................................298

16.4.2 Channel Mode Selection .................................................................................................300

16.5 Reset Overview .............................................................................................................................303

16.5.1 General ............................................................................................................................303

16.5.2 Description of Reset Operation .......................................................................................303

16.6 Interrupts .......................................................................................................................................303

16.6.1 General ............................................................................................................................303

16.6.2 Description of Interrupt Operation ..................................................................................304

Chapter 17

Development Support

17.1 Introduction ...................................................................................................................................307

17.1.1 Forcing Active Background ............................................................................................307

17.1.2 DBG Clock Gating ..........................................................................................................307

17.1.3 Module Conﬁguration .....................................................................................................307

17.1.4 Features ...........................................................................................................................308

17.2 Background Debug Controller (BDC) ..........................................................................................308

17.2.1 BKGD Pin Description ...................................................................................................309

17.2.2 Communication Details ..................................................................................................309

17.2.3 BDC Commands .............................................................................................................313

17.2.4 BDC Hardware Breakpoint .............................................................................................315

17.3 Register Deﬁnition ........................................................................................................................315

17.3.1 BDC Registers and Control Bits .....................................................................................316

17.3.2 System Background Debug Force Reset Register (SBDFR) ..........................................318

MC9S08QE128 MCU Series Reference Manual, Rev. 2

18 Freescale Semiconductor

Section Number Title Page

Chapter 18

Debug Module (DBG) (128K)

18.1 Introduction ...................................................................................................................................321

18.1.1 Features ...........................................................................................................................321

18.1.2 Modes of Operation ........................................................................................................322

18.1.3 Block Diagram ................................................................................................................322

18.2 Signal Description .........................................................................................................................322

18.3 Memory Map and Registers ..........................................................................................................323

18.3.1 Module Memory Map .....................................................................................................323

18.3.2 324

18.3.3 Register Descriptions ......................................................................................................325

18.4 Functional Description ..................................................................................................................338

18.4.1 Comparator .....................................................................................................................338

18.4.2 Breakpoints .....................................................................................................................339

18.4.3 Trigger Selection .............................................................................................................339

18.4.4 Trigger Break Control (TBC) .........................................................................................340

18.4.5 FIFO ................................................................................................................................343

18.4.6 Interrupt Priority .............................................................................................................344

18.5 Resets ............................................................................................................................................344

18.6 Interrupts .......................................................................................................................................345

18.7 Electrical Speciﬁcations ................................................................................................................345