Hand Held Products IT4300 Integration Manual

Brand: Hand Held Products

Model: IT4300

Type: Integration Manual

Integration Manual

IMAGETEAM™ 4X00 Series

For the following imagers:

IT4000SR, SF, or HD, IT4100SR, SF, or HD, and

IT4300SR, SF, or HD

Disclaimer

Hand Held Products, Inc. (“Hand Held Products”) reserves the right to make changes in specifications and other information

contained in this document without prior notice, and the reader should in all cases consult Hand Held Products to determine

whether any such changes have been made. The information in this publication does not represent a commitment on the part

of Hand Held Products.

Hand Held Products shall not be liable for technical or editorial errors or omissions contained herein; nor for incidental or

consequential damages resulting from the furnishing, performance, or use of this material.

This document contains proprietary information that is protected by copyright. All rights are reserved. No part of this document

may be photocopied, reproduced, or translated into another language without the prior written consent of Hand Held Products.

Web Address: www.handheld.com

Microsoft

Visual C/C++

, Windows

95, Windows

98, Windows

2000, and Windows NT

are either registered trademarks

or trademarks of Microsoft Corporation in the United States and/or other countries.

Other product names mentioned in this document may be trademarks or registered trademarks of other companies and are the

property of their respective owners.

Note: Specification drawings are for reference only. Please contact Hand Held Products for the most current drawing.

FCC/CE

The IMAGETEAM™ (IT) 4X00 Series Image Engine, integrated into an OEM device, may require testing by the OEM to insure

compliance with the following federal regulations:

47 CFR Part 15

EC’s Electromagnetic Compatibility Directive (89/336/EEC) and Low Voltage Directive (73/23/EEC)

For CE-related inquiries, please contact:

Hand Held Products, Inc.

Nijverheidsweg 9

5627 BT Eindhoven

The Netherlands

Hand Held Products shall not be liable for use of our product with equipment (i.e., power supplies, personal computers, etc.) that

is not CE marked and does not comply with the Low Voltage Directive.

LED Eye Safety Statement for IT4000/IT4100 Series Engines

The IT4000/IT4100 series engine meets the requirements of a Class 1 Product as specified in IEC 825-1:1993 and EN 60825-

1:1994 when tested in a standard IT4410 and IT4710.

It is the OEM manufacturer’s responsibility to comply with applicable regulation(s) in regard to standards for specific equipment

combinations.

Caution - Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous

radiation exposure.

Laser Eye Safety Statement for IT4300 Series Engines

The IT4300 is intended for use in CDRH/IEC Class 2 devices.

Note: It is the OEM manufacturer’s responsibility to comply with applicable regulation(s) in regard to standards for specific

equipment combinations.

Caution - Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous

radiation exposure.

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Chapter 1 - Introduction and Installation

About the 2D Image Engine................................................................................................................1-1

ESD Precautions..................................................................................................................................1-1

Dust and Dirt .......................................................................................................................................1-1

Product Specifications.........................................................................................................................1-1

Interface Connector .............................................................................................................................1-2

Connector View ............................................................................................................................1-2

Connector Mechanical ..................................................................................................................1-2

Imager Orientation........................................................................................................................1-3

Connector Position and Flex Orientation......................................................................................1-3

Connector.............................................................................................................................................1-3

Connector Pinout...........................................................................................................................1-3

Electrical Interface Considerations......................................................................................................1-4

Chapter 2 - Working with the IT4X00 Series

Serial Command Interface (I

C)..........................................................................................................2-1

Data Write Sequence.....................................................................................................................2-1

Data Read Sequence......................................................................................................................2-1

I2C Style Interface Basic Waveforms...........................................................................................2-2

Timing Chain.......................................................................................................................................2-2

Control Register Table..................................................................................................................2-2

Vertical Considerations.................................................................................................................2-2

Horizontal Considerations.............................................................................................................2-3

Active Pixel Window Alignment ........................................................................................................2-3

Vertical..........................................................................................................................................2-4

Horizontal......................................................................................................................................2-4

Interdependencies................................................................................................................................2-4

Column Position of CDS Subtraction Pulse (Reg. 0x9C, 0x9B)..................................................2-4

Exposure vs. Frame Height (Number of Lines per Frame)...........................................................2-4

Changes in Exposure Value vs. Frame Height .............................................................................2-5

Exposure vs. Frame Width (Number of Pixel Clocks per Line/Row) ..........................................2-5

Exposure Control Method and Exposure/Data Clock Out Timeline...................................................2-5

The Effects of Timing on Noise ..........................................................................................................2-6

Initial Configuration (FPGA, ASIC).............................................................................................2-6

Preliminary Intel PXA27X Interface ............................................................................................2-7

Illumination/Aimer Control...............................................................................................................2-10

Aimer Modes...............................................................................................................................2-10

Laser Aimer Thermal Considerations.........................................................................................2-11

LED Power Control PWM..........................................................................................................2-11

LED Current for Selected Duty Cycle Settings ..........................................................................2-11

Table of Contents

Chapter 3 - Electrical

DC Characteristics...............................................................................................................................3-1

Operating Voltage ........................................................................................................................3-1

Imager Input/Output Voltage........................................................................................................3-1

LED Input Voltage........................................................................................................................3-1

Current ..........................................................................................................................................3-1

AC Characteristics...............................................................................................................................3-2

Frame Timing................................................................................................................................3-2

Line Timing...................................................................................................................................3-3

Pixel Clock Edge Transition Detail ..............................................................................................3-3

AC Timing 30 Frames per Second................................................................................................3-3

Imager Startup Timing..................................................................................................................3-4

LED Power Supply Startup Timing..............................................................................................3-4

Image Acquisition Timeline..........................................................................................................3-4

Standard Mounting Configuration for IT4000 ....................................................................................3-6

Optional Mounting Configuration for IT4000.....................................................................................3-7

Standard Mounting Configuration for IT4100 ....................................................................................3-8

Optional Mounting Configuration for IT4100.....................................................................................3-9

Standard Mounting Configuration for IT4300 ..................................................................................3-11

Optional Mounting Configuration for IT4300...................................................................................3-12

Chapter 4 - Optics and Illumination

Window Placement..............................................................................................................................4-1

Distance from Window.................................................................................................................4-1

Window Size and Material Requirements...........................................................................................4-1

Code Presentation Angle .....................................................................................................................4-2

Ambient Light......................................................................................................................................4-2

Eye Safety Standard for IT4000/IT4100 Series Engines.....................................................................4-3

Eye Safety Standard for IT4300 Series Engines .................................................................................4-3

LEDs....................................................................................................................................................4-3

Chapter 5 - Customer Support

Product Service and Repair .................................................................................................................5-1

Online Product Service and Repair Assistance.............................................................................5-1

Technical Assistance ...........................................................................................................................5-2

Online Technical Assistance.........................................................................................................5-2

Limited Warranty ................................................................................................................................5-2

Appendix A - FPGA/ASIC Imager Interface

Appendix B - FIFO Depth Based on System Assessment

Appendix C - Imager Power Supply Noise and PCB Layout

Considerations and Methods for the Power Supply.....................................................................C-1

Appendix D - Hardware and Software Interdependencies

IMAGETEAM™ 4X00 Series Integration Manual 1 - 1

Introduction and Installation

About the 2D Image Engine

The IMAGETEAM™ (IT) 4X00 Series are small image engines designed for integration into handheld portable data terminals or

other OEM devices. The IT4X00 Series are input devices for reading and decoding linear, stacked linear (PDF417), and 2D

matrix bar code symbologies. The IT4X00 Series incorporate the latest CMOS-based area array sensors. This technology is

being adopted in other markets and products, for example, digital cameras, PC-based video conferencing, video surveillance,

automobiles, and toys. The IT4X00 Series 2D Image Engines function like digital cameras and add functionality and value to an

OEM product by adding additional capabilities such as digital image capture, document lift, signature capture, and reading OCR

A and B characters.

The IT4X00 Series Image Engines are specifically designed for easy integration into most existing portable data terminals. The

size and current draw of the devices allow the engines to drop in with few mechanical modifications. The decoder module

supports a TTL standard RS-232 interface that, in most cases, does not require any hardware modifications to existing platforms.

To ease integration efforts, a Software Developers Kit provides a simple software interface (APIs).

ESD Precautions

The IT4X00 Series engine is shipped in ESD safe packaging. Use care when handling the scan engine outside its packaging.

Be sure grounding wrist straps and properly grounded work areas are used.

Dust and Dirt

The IT4X00 Series engine must be sufficiently enclosed to prevent dust particles from gathering on the imager and lens. Dust

and other external contaminants will eventually degrade unit performance.

Product Specifications

1. Measured from the end of the lens tube.

Parameter Specification

Dimensions

See page 3-6 or page 3-7.

Weight Less than 2 ounces (56 g) (Decode Module and Image Module - less than 1 ounce (28.4 g) each)

Illumination Source 626 +

30 nm red LEDs

Aiming Pattern Source

526 +30 nm green LEDs

optional 626±30 nm red LEDs (IT4000 only)

Laser Aimer

650 nm +10 nm/-5 nm

Resolution

SR/SF

5 mil minimum, Linear symbol

15 mil (.38mm) minimum, 2D Matrix symbol

4 mil (.10mm) minimum, Linear symbol

9 mil (.23mm) minimum, 2D Matrix symbol

Rotational Sensitivity

360° around optical axis

Viewing Angle

±40° at the nominal operating distance

Motion Sensitivity approx. 2 inches (5 cm) per second of lateral motion

Ambient Light Total darkness to 100,000 Lux (sunlight)

Temperature Ranges

Operating 14° F to +122° F (-10C to +50C)

Storage -40° F to +158° F (-40C to +70C)

Humidity

95% RH non-condensing

1 - 2 IMAGETEAM™ 4X00 Series Integration Manual

Interface Connector

Molex FFC/FPC Connector 54393-2192 drawings taken from Molex Catalog page MX01. 0.3 mm (0.012 in.) pitch, Right Angle,

SMT, ZIF, Bottom Contact.

Connector View

Connector Mechanical

Units = Millimeters

Inches

IMAGETEAM™ 4X00 Series Integration Manual 1 - 3

Imager Orientation

When the IT4X00 Series is mounted with the label pointing up, captured images appear right side up.

Connector Position and Flex Orientation

Connector

The interface connector is a Molex 0.30mm (.012") Easy-On™ Type Right Angle, SMT, ZIF, Bottom Contact Style Receptacle

part number 54393-2192. See Interface Connector on page 1-2 for details.

Connector Pinout

Pin Signal Description

1 Ground Power and signal ground.

2 LED Current Control PWM Input - Controls the LED current. A pulse width modulated signal based on a frequency of 7.5K Hz

reduces the current of the LED power supply. The relationship of current to duty cycle is inversely pro-

portional (the longer the duty cycle, the lower the current). Leave this pin unconnected if not using this

feature.

3 Ground Power and signal ground.

4 Horizontal Sync (H Data Valid) Output - Definition varies according to the setting of the image registers. For the configuration defined in

this document, this signal is used as a data valid window. Polarity of this signal is selectable in register

address 0x01, Bit 1. Hand Held Products setting is 1 = active high window.

5 Vertical Sync (V Data Valid) Output - Definition varies according to the setting of the image registers. For the configuration defined in

this document, this signal is used as a data valid window. Polarity of this signal is selectable in register

address 0x01, Bit 2. Hand Held Products setting is 0 = active low window.

6 Aimer On Input - Active high on this line enables the LED power supply and turns on the 2 aiming LEDs. This line

may be pulse width modulated many times per horizontal line (based on pixel clock) in order to reduce

power.

7 Illumination On Input - Active high on this line enables the LED power supply and turns on the 4 illumination LEDs. This

line may be pulse width modulated many times per horizontal line (based on pixel clock) in order to

reduce power.

8 Power Enable Input - Active high enables the imager. A low on this line places the imager in a power down state.

C Data (SDA)

Imager follows slave protocols with respect to this signal.

C Clock (SCL)

Imager follows slave protocols with respect to this signal.

Top

Flex

1 - 4 IMAGETEAM™ 4X00 Series Integration Manual

Electrical Interface Considerations

When designing the host system circuitry with a switched V

imager, you must make sure there is no leakage path from the host

into the imager I/O lines. Leakage back into the imager I/O causes the imager V

to be back powered via the imager’s internal

pull-ups, protection diodes, and parasitic FET diodes. This results in unwanted current draw and causes the imager's power up

reset system to fail. A power up reset failure causes the imager to behave erratically and it may not respond correctly to I

commands.

11 Vin LED +3V to +9V - Power supply input for LED illumination and aiming.

12 D0 Output - Pixel data. Data lines change on each falling edge of pixel clock. Data is considered valid on

the rising edge of pixel clock.

13 Vin Imager Vin Imager, +3.3V - Power supply for the imager. Care must be taken to ensure this supply is heavily

decoupled and is protected from cross coupling to high frequency signals of the processing/decoding cir-

cuitry. A broad band filter may be needed to obtain adequate isolation. See Considerations and Methods

for the Power Supply on page C-1.

When designing the host system circuitry with a switched V

imager, you must guarantee there is no

leakage path from the host into the imager I/O lines. Leakage back into the imager I/O causes the

imager V

to be back powered via the imager’s internal pull-ups, protection diodes, and parasitic FET

diodes. This results in unwanted current draw and the imager's power up reset system will fail. The

imager behaves erratically and may not respond correctly to I2C commands when there is a power up

reset failure.

14 D1

Output - Pixel data. Data lines change on each falling edge of pixel clock. Data is considered valid on

the rising edge of pixel clock.

15 D2

16 D3

17 D4

18 D5

19 D6

20 D7

21 Pixel Clock (PCLK) Output - Imager timing signal that clocks pixel data. Data is valid on the rising edge of this signal.

Pin Signal Description

IMAGETEAM™ 4X00 Series Integration Manual 2 - 1

Working with the IT4X00 Series

Serial Command Interface (I

The imager on the IT4X00 Series engine uses an I

C style interface to write and read the internal control registers.

Note: The register address pointer does NOT automatically increment the register pointer.

Each write to a sequential register requires the sub address (register address) be written with one byte of data. Each read from

a register other than the register last accessed (read or write) must have the sub address set using a “no data” write sequence

followed by the actual read. Only one byte of data should be clocked out when performing this read.

Slave Read/Write Address:Write Slave address40 Hex

Read Slave address41 Hex

Data Write Sequence

The following is an example of an I

C write to the IT4X00 Series sequence:

Data Read Sequence

An I

C read consists of a two step process. The first step is a transmit in write mode of the slave address, the sub address and

then a termination (a no data write). The first step sets the register address pointer inside the imager in preparation for the read.

The second step is the actual read of the data from the register of interest.

The following example shows the two step address write/read sequence:

Start Slave Address (7) R/W Ack Sub Address Ack Data Ack Stop

Master Slave

(bit)

(Reg Add)

(byte)

Master

(byte)

Slave

(bit)

Slave

(bit)

Master

(byte)

Start Slave Address (7) R/W Ack Sub Address Ack Stop

Master Slave

(bit)

(Reg Add)

(byte)

Master

(byte)

Slave

(bit)

Start Slave Address (7) R/W Ack Sub Address Ack Stop

Master Slave

(bit)

(Reg Add)

(byte)

Master

(byte)

Slave

(bit)

Start Slave Address (7) R/W Ack Data Ack Stop

Master Slave

(bit)

(byte)

Master

(bit)

Slave

(byte)

2 - 2 IMAGETEAM™ 4X00 Series Integration Manual

C Style Interface Basic Waveforms

The following information is provided for reference. The I

C-Bus Specification should be consulted for a complete understanding

of the this interface.

Timing Chain

Control Register Table

*Value is 20 pixels > 640 active plus 10 light shielded pixels to ensure a good dark region for CDS subtractive pulse sample.

**5 lines > active plus 10 light shielded lines.

Vertical Considerations

When you change the value of the row start register you do

not

delay the data output. The value of this register sets a row pointer

that is allowed to roll over. The result is the output of all data from frame 10 during the frame 10 scan out period.

Example: If the row start value is set to 520 in a 525 row frame, then the active row number 4 of frame 10 is actually seen at

the beginning of frame 10 (not 11), and the first 5 lines of frame 10 occur at the end of 10. This means that a

movement of the active row start appears as a delay in time until the value set in registers 0x15, 0x14 reaches a

number that, when added to the active row count of 490, is greater than the frame height. Therefore, a start row of

50 causes the last 15 active rows to be output first, followed by 35 inactive rows, then the first 475.

525 - (490+50) = -15

Control Register

Address

Description Min/Max (Dec)

0x0D,0x0C Frame Width (columns/pixel clocks) 670* / 1023

0x0E, 0x0f Frame Height (rows/lines) 495** / 1023

0x11, 0x11 Column to start output of active pixels 0 / 1023

0x15, 0x14 Row to start output of active pixels 0 / 1023

0x19, 0x18 Hsync end column (width) 1 / FW-1

0x1A,0x1B Vsync end row (width) 1 / FH-1

0x9C, 0x9B CDS Subtractive Pulse Column position 1 / FW-1

Stop

SCL

SDA

Start

ACK

2 21

ACK

SCL

SDA

1 9

Start and Stop condition waveforms:

Data Transfer waveforms:

IMAGETEAM™ 4X00 Series Integration Manual 2 - 3

Frame start of row/line 10 appears as a delay of ten lines from Vertical:

Frame start set to row/line 50 causes the last lines of the frame to occur first:

Horizontal Considerations

When you change the value of the column start register you do

not

delay the data output. The value of this register sets a column

pointer that is allowed to roll over. The result is the output of all data from row 120 during the row 120 scan out period.

Example: If the column start value is set to 840 in an 858 column row, then the active column number 632 of row 120 is actually

seen at the beginning of row 120 (not 121), and the first 18 lines of row 120 occur at the end of 120. This means that

a movement of the active column start appears as a delay in time until the value set in registers 0x11, 0x10 reaches

a number that, when added to the active column count of 650, is greater than the frame width. For a start of 840, the

last 632 pixels are output first, with the first 18 output at the end of the row.

858 - (650+840) = -632

Typical row with column start set to 180, frame width 858:

Row with column start set to 840, frame width 858:

Active Pixel Window Alignment

The following settings are used to generate the timing signals that create a data valid window from the vertical and horizontal

synchronization signals from the IC Media ICM-105A.

Vertical

Frame Start

Row Data

F4:R90

0 525

Beg Fr 5

F4:R10

Vertical

End Fr 3

Row Data

F4:R490 F4:R50

Frame Start

Beg Fr 5

Horizontal

Column Start

Pixel Data

R20:C180 R20:C650

Horizontal

Pixel Data

End Row 19

R20:P19 R20:P650 R20:C840 Row 21

Column Start

2 - 4 IMAGETEAM™ 4X00 Series Integration Manual

Ver ti cal

The vertical timing is configured with the active row start value (reg 0x15, 0x14) where the last 485 active rows, or lines of video,

of a 525 row frame are output immediately after the leading edge of the vertical signal, and the first five rows appear at the end

of the frame. The vertical pulse end is set to occur at row 480. The acquisition circuit acquires while the vertical signal is low.

Therefore, the circuit acquires data only during the low vertical window created by these settings.

Vertical data valid window data alignment:

The window is derived so the first and last 5 light shielded rows are ignored. Other row count value combinations are possible.

Horizontal

The horizontal pixel alignment and timing is similar to the vertical. The imager inverts the horizontal signal, Hsync end is set to

640, frame width (row length) is 858 pixel clocks per row, and the data is positioned at column start 853. This configuration

creates a window that presents the last 853 pixels first (640 + 5 light shielded + 28 blanks), and the first 5 light shielded pixels at

the end of the row.

Horizontal data valid window data alignment:

Interdependencies

Column Position of CDS Subtraction Pulse (Reg. 0x9C, 0x9B)

The register value for the CDS subtractive pulse must be considered when adjusting the frame width (FW) and the start of active

data column settings. As noted in the Control Register Table (see page 2-2), this value must be less than the value entered for

FW. If CDS is greater than FW, the imager produces very strange video data results.

The IT4X00 Series engine does not perform the Correlated Double Sampling (CDS) method as the pixel’s value is read and

converted. The correlation samples are taken on a row basis. This means that the correlation samples for an entire row (line)

are taken when the row is reset prior the start of integration. The position of this correlation sample, selected by these registers,

determines when the correlation sample value is subtracted from the integration value of the video samples for each horizontal

line. The ideal column setting for the CDS subtractive pulse is at the end of the row after the active pixel data. Placing the

subtractive pulse during active pixel data leads to unpredictable results.

Exposure vs. Frame Height (Number of Lines per Frame)

The exposure is controlled by setting the number of rows (lines) to allow the pixels to acquire charge (row as a measure of

integration time based on RowCount * T

row

). The frame height must be set to a minimum value equal to the total number of active

lines (490),

to a number of rows that is greater than or equal to the exposure setting, but not greater than the maximum value

of 1023 ( [490 or Exp] < FH < 1023).

Vertical

Row Data

Horizontal

Row Data

IMAGETEAM™ 4X00 Series Integration Manual 2 - 5

Changes in Exposure Value vs. Frame Height

The time (measured in frames) for a new exposure to fully take effect is dependent on the absolute value of the change in

exposure (in rows) as it relates to the difference of the frame height (FH) minus the last active video row (LAVR). An exposure

change that is greater than the frame height/last active row difference requires two frames before the new exposure takes full

effect. An exposure change that is less than or equal to the difference takes one frame to take full effect.

This may be expressed as:

If |dExposure| <= (FH - LAVR) then Frames to full effect = 1

If |dExposure| > (FH - LAVR) then Frames to full effect = 2

Example: For a video configuration of Frame Height (FH) = 525 and a last active video row position of 500 (490 rows with active

frame start at row 10), a change in exposure of 26 rows requires 2 frames to full effect.

Exposure vs. Frame Width (Number of Pixel Clocks per Line/Row)

The exposure is controlled by setting the number of rows (lines) to allow the pixels to acquire charge. Changing frame width,

measured in columns or Pixel Clocks per Row, has the greatest impact on exposure. Since the time to scan one row (T

row

) is

the basis for defining integration time, the exposure or integration time as a function of row count is:

= RowCount * T

row

and is therefore directly proportional to the time to scan one row.

row

= PixClkPerRow * T

PixClk

Exposure Control Method and Exposure/Data Clock Out Timeline

The exposure is controlled by an electronic shutter (see Electronic Shutter Exposure Method, page 2-5). The pixel array is

always exposed to light in this method of exposure control (unlike the mechanical shutter method that shields the imager array

from incoming light when not exposing). Therefore the image array must have some way of adjusting the system so that only

the charge collected for the desired time of exposure is read out of the imager. The exposure control circuitry of the imager

performs this task by allowing the photo diode array to collect charge until the time the next vertical minus the exposure

(measured in rows) is reached. The unwanted charge collected to this point is then removed from the photodiodes and the

charge is allowed to build again over the desired exposure interval. The wanted charge is collected at the end of the line.

Electronic Shutter Exposure Method

Since the charge is collected at the end of the frame, this charge data is not clocked out of the imager during this frame. The

data is clocked during the next frame interval. Therefore, the data read from the imager is delayed by one frame time:

Vert

Charge on

Photo Diode

Charge is dumped

(reset)

Exposure Time

(wanted charge)

Expose

Read Out

Frame 1 Frame 2 Frame 3

1st 2nd 3rd

Frame 1 Frame 2

1st 2nd

2 - 6 IMAGETEAM™ 4X00 Series Integration Manual

The Effects of Timing on Noise

IC Media has admitted that the settings and active area output timing selection can affect the noise levels within a given image.

Noise injection changes as the A/D samples are aligned with different points in the timing sequence. The best settings keep the

active pixels away from specific timing regions such as vertical and horizontal synchronization pulses which cause a flurry of

switching signal occurrences.

Initial Configuration (FPGA, ASIC)

The register settings of the initial Hand Held Products configuration are shown in the following table. The configuration generates

timing signals that create data acquisition windows for frame (vertical) and horizontal (row, line) data valid regions. The timing

is based on the IC Media default frame height and line width that provide a frame rate of 30 fps.

Initial Hand Held Products Register Settings for IC Media ICM105A

Hex

Address

Initial Hand Held

Products

Hex Dec

Timing Control 02, 01 001B -

Frame Width (pclk) 0D, 0C 035A 858

Frame Height (lines) 0F, 0E 020D 525

Beg act pix out (pclk)

1.These values may be changed to meet the hardware timing requirements of the host

system.

11,10 0355 853

Beg act frame out (lines)

15, 14 0208 520

Horiz pulse width (pclk) 19, 18 0280 640

Vert Pulse Width (lines) 1B, 1A 01E0 480

CDS subt pulse pos (pclk)

Must be FW - 1 or placed after last active pixel

9C, 9B 0342 834

Exp time (pclk) 1D, 1C FF00 65280

IMAGETEAM™ 4X00 Series Integration Manual 2 - 7

Timing Control LSB (Address O1)

Initial Hand Held Products Configuration Vertical Timing

Note the row/line data relationship within each frame. The data presented within each line is the data from that line. The IT4X00

Series engine does not present data rolled over from a previous frame, nor is data rolled back from a future frame (refer to Vertical

Considerations, page 2-2).

Initial Hand Held Products Configuration Horizontal Row/Line Timing

Preliminary Intel PXA27X Interface

The Intel

PXA27X (Bulverde) integrates a CMOS imager interface on the chip that can be used to interface to the IT4X00 Series.

The interface uses a synchronization tracking timing circuit that is very flexible and relatively easy to use.

Reserved Reserved Reserved Reserved Reserved VSync Polarity HSync Polarity Reserved

0 0 0 1 1 0=Active Low

1=Active High

0=Active Low

1=Active High

Vert

Horz

Data

Vsync IRQ

012

479

520 524

First 5 light

shielded lines

blank

lines

Last 5

light

shielded

Active rows/lines 6 to 485

Hor

PxCLK

Data

640 Valid Data

208

858

First 5

light

shielded

pixels

Last 5

light

shielded

pixels

2 - 8 IMAGETEAM™ 4X00 Series Integration Manual

IT4X00 Series Register Settings for the PXA27XI

Notes:

d Dynamic value that changes as needed for image capture control.

DMA_EN DMA request Enable. 0=disable; 1=enable.

ENB Camera interface Enable. 0=disable; 1=enable.

DIS Camera interface Disable. 0=do not disable camera interface after capture (continuous scanning); 1=disable cam-

era interface after capture is complete. See CISR CDD flag.

TOM Time-Out Mask. 0=Generate time-out condition interrupt; 1=Do not generate time-out condition interrupt (time-out

of stalled image capture).

QDM Quick Disable Mask. 0=Generate QD interrupt; 1=Do not generate QD interrupt.

CDM Disable Done Mask. 0=Generate capture interface disable done interrupt; 1=Do not generate capture interface dis-

able done interrupt.

EOFM End of Frame Mask. 0=Generate an interrupt at end of frame; 1=Do not generate EOF interrupt.

Notes:

PPL Pixels Per Line. Value of 0 to 2047 where actual number of imager pixels per line = PPL+1 (PPL = imager pixels per

line-1).

RAW_BPP Raw Bits Per Pixel. 0b00=8; 0b01=9; 0b10=10; 0b11=reserved.

DW Imager Data Width. 0b000=4; 0b001=5; 0b010=8; 0b100=10.

Hex

Address

Initial Hand Held

Products

Hex Dec

Timing Control 02, 01 001D -

Frame Width (pclk) 0D, 0C 035A 858

Frame Height (lines) 0F, 0E 020D 525

Beg act pix out (pclk) 11,10 00B4 180

Beg act frame out (lines) 15, 14 0209 521

Horiz pulse width (pclk) 19, 18 0040 64

Vert Pulse Width (lines) 1B, 1A 01E0 480

CDS subt pulse pos (pclk)

Must be FW - 1 or placed after last active pixel

9C, 9B 0342 834

Exp time (pclk) 1D, 1C FF00 65280

CICR0 - Capture Interface Control Register 0

bit 313029282726252423222120191817161514131211109876543210

Setting d00dd000XXXXXXXXXXXXXXd1111dd0d1

DMA_EN

PAR_E N

SL_CAP_EN

ENB

DIS

SIM

Reserved

TOM

RDVAM

FEM

EOLM

PERRM

QDM

CDM

SOFM

EOFM

FOM

CICR1 - Capture Interface Control Register 1

bit 313029282726252423222120191817161514131211109876543210

Setting X00XXX01001111111000000000000010

TBIT

RGBT_CONV

Reserved

PPL (Pixels Per Line)

RGB_CONV

RGB_F

YCBR_F

RGB_BPP

RAW_BPP

COLOR_SP

IMAGETEAM™ 4X00 Series Integration Manual 2 - 9

BLW Beginning of Line. Pixel clock wait 0 to 255. Number of pixel clocks to wait (delay) from the active edge of CIF_LV

(horizontal) to first valid data.

BFW Beginning of Frame Line Wait. 0 to 255 specifies the number of lines to wait from the start of the frame to the first

pixel capture.

LPF Lines Per Frame. 0 to 2047. Actual imager lines per frame = LPF+1 (LPF=imager lines per frame-1).

PCLK_EN Selects if imager is the source of pixel clock. 0=CIF_PCLK is not supplied by sensor (int); 1=CIF_PCLK is supplied

by sensor (ext).

PCP Select the active edge of CIF_PCLK. 0=Data sampled on rising edge of CIF_PCLK; 1=Data sampled on falling

edge of CIF_PCLK.

HSP Horizontal Sync Polarity. 0=CIF_LV is active high, inactive low; 1=CIF_LV is active low, inactive high.

VSP Vertical Sync Polarity. 0=CIF_FV is active high, inactive low; 1=CIF_FV is active low, inactive high.

FR_RATE Frame Capture Rate. Defines the frequency of capture of one video frame (or the number of frames to skip between

captures).

000Capture all incoming frames

001Capture 1 of every 2 frames

010Capture 1 of every 3 frames

011Capture 1 of every 4 frames

100Capture 1 of every 5 frames

101Capture 1 of every 6 frames

110Capture 1 of every 7 frames

111Capture 1 of every 8 frames

Time-out CIF FIFO inactivity time-out interval from 0 to (2

-1)

CICR2 - Capture Interface Control Register 2

bit 313029282726252423222120191817161514131211109876543210

Setting 10111001XXXXXXXXXXXXXXXXXXXXXXXX

BLW (Beginning of Line)

ELW (End of Line Wait)

HSW

(Horizontal Sync PW)

Reserved

BFPW (Beg Fr Pix Wait)

FSW

(fr stbl wt)

CICR3 - Capture Interface Control Register 3

bit 313029282726252423222120191817161514131211109876543210

Setting 00101101XXXXXXXXXXXXX00111011111

BFW (Beginning of Frame Wait)

EFW (End of Frame Wait)

VSW

(Vertical Sync PW)

LPF (Lines Per Frame)

CICR4 - Capture Interface Control Register 4

bit 313029282726252423222120191817161514131211109876543210

Setting XXXXX00010110XXXXXXXX00000000000

Reserved

MCLK_DLY

PCLK_EN

PCP

HSP

VSP

MCLK_EN

Reserved

FR_RATE

DIV

CITOR - Capture Interface Time-out Register

bit 313029282726252423222120191817161514131211109 8 7 6 5 4 3 2 1 0

Setting 00000000000000000000000000000000

Time-out

2 - 10 IMAGETEAM™ 4X00 Series Integration Manual

FTO FIFO time-out. 1=Time-out occurred.

FDAV_[2:0] FIFO Channel X data received 1=Received data available for respective channel.

FEMPTY_[2:0] FIFO Channel X empty. 1=Respective channel.

EOL End Of Line. 1=End of line detected.

PAR_ERR Parity Error in serial sync string. 1=Parity error detected.

CQD Camera Interface Quick Disable. 1=Capture interface has been quick disabled.

CDD Camera Interface Disable Done. 1=Capture interface has been disabled and active video frame is complete.

SOF Start Of Frame. 1=Capture interface has detected the start of a frame.

EOF End Of Frame. 1=Capture interface has detected the end of a frame.

IFO[2:0] FIFO overrun in corresponding channel. 1=Respective FIFO channel overrun detected.

d Dynamic value that changes as needed for image capture control.

FLVL[2:0] FIFO level 0, 1, and 2 can be set to buffer 0 to 128, 0 to 64, and 0 to 64 bytes, respectively

THL_0 Threshold Level for FIFO channel 0 (DMA requests are generated when this value is reached). 00-32 bytes; 01-64

bytes; 10-96 bytes; 11 - reserved.

RESET_F Reset input FIFO. 0=no effect; 1=all input FIFOs (and this bit) are cleared.

FEN[2:0] FIFO enable 0, 1, and 2. 0=corresponding FIFO disabled; 1=corresponding FIFO enabled.

Illumination/Aimer Control

There are two primary methods of controlling the total power draw of the illumination and aiming systems: reducing the power,

or pulsing the Illumination On or Aimer On control signals.

Note: Reducing the current/power also reduces the intensity of the illumination. This reduction in light levels directly impacts the

reading attributes of the image module. A reduction in light levels reduces reading distance to target and DOF

performance.

Aimer LEDs are typically not on for prolonged periods of time, therefore a power savings may not be seen by pulsing the Aimer

On control signal.

Pulsing the Illumination On signal can create a large reduction because the illumination LEDs are on during the entire frame time

(24 ms to 33 ms). The control line

must

be pulsed at a rate that is less than the line rate so the LEDs are flashed on and off many

times per line, and for the same number of times each line. If this is not done, light and dark bands appear throughout the image,

reducing reading and image taking performance.

Aimer Modes

Interleaved Mode

Interleaved Mode is characterized by the illumination LEDs and aiming LEDs/Laser being turned on alternately, or in an

interleaved fashion (illumination on, aimer off/illumination off, aimer on). In this mode, the aimer flashes on and off. Interleaved

Mode is the most efficient for power conservation and heat reduction.

CISR - Capture Interface Status Register (clear these flags by writing a one to the corresponding bit)

bit 313029282726252423222120191817161514131211109 8 7 6 5 4 3 2 1 0

Setting XXXXXXXXXXXXXXXX0000000000000000

Reserved

FTO

RDAV_2

RDAV_1

RDAV_0

FEMPTY_2

FEMPTY_1

FEMPTY_0

EOL

PA R_ERR

CQD

CDD

SOF

EOF

IFO_2

IFO_1

IFO_0

CIFR - Capture Interface FIFO Control Register

bit 313029282726252423222120191817161514131211109 8 7 6 5 4 3 2 1 0

Setting XX1000000100000010000000XX01d001

Reserved

FLVL2 FLVL1 FLVL0

Reserved

THL_0

RESETF

FEN2

FEN1

FEN0

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Hand Held Products IT4300 Integration Manual

Brand: Hand Held Products

Model: IT4300

Type: Integration Manual

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Hand Held Products IT4300 Integration Manual

Hand Held Products IT4300 Integration Manual

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