CONTENTS
Paragraph
Number
Title
Page
Number
Contents
vii
2.2.1.12 System Error (SERR) ............................................................................... 2-14
2.2.1.12.1 System Error (SERR
)—Output ............................................................ 2-15
2.2.1.12.2 System Error (SERR
)—Input............................................................... 2-15
2.2.1.13 Stop (ST
OP).............................................................................................. 2-15
2.2.1.13.1 Stop (ST
OP)—Output .......................................................................... 2-15
2.2.1.13.2 Stop (ST
OP)—Input............................................................................. 2-15
2.2.1.14 Interrupt Request (INT
A)—Output........................................................... 2-15
2.2.1.15 ID Select (IDSEL
)—Input........................................................................ 2-16
2.2.2 Memory Interface Signals............................................................................. 2-16
2.2.2.1 Row Address Strobe (RAS
[0:7])—Output............................................... 2-16
2.2.2.2 Column Address Strobe (CAS
[0:7])—Output.......................................... 2-17
2.2.2.3 SDRAM Command Select (CS
[0:7])—Output ........................................ 2-17
2.2.2.4 SDRAM Data Input/Output Mask (DQM[0:7])—Output........................ 2-17
2.2.2.5 Write Enable (WE
)—Output.................................................................... 2-18
2.2.2.6 SDRAM Address (SDMA[11:0])—Output.............................................. 2-18
2.2.2.7 SDRAM Address 12 (SDMA12)—Output............................................... 2-18
2.2.2.8 SDRAM Internal Bank Select 0–1 (SDBA0, SDBA1)—Output ............. 2-18
2.2.2.9 Memory Data Bus (MDH[0:31], MDL[0:31]) ......................................... 2-19
2.2.2.9.1 Memory Data Bus (MDH[0:31], MDL[0:31])—Output...................... 2-20
2.2.2.9.2 Memory Data Bus (MDH[0:31], MDL[0:31])—Input......................... 2-20
2.2.2.10 Data Parity/ECC (PAR[0:7]).................................................................... 2-20
2.2.2.10.1 Data Parity (PAR[0:7])—Output.......................................................... 2-20
2.2.2.10.2 Data Parity (PAR[0:7])—Input............................................................. 2-21
2.2.2.11 ROM Address 19:12 (AR[19:12])—Output............................................. 2-21
2.2.2.12 SDRAM Clock Enable (CKE)—Output................................................... 2-21
2.2.2.13 SDRAM Row Address Strobe (SDRAS
)—Output .................................. 2-21
2.2.2.14 SDRAM Column Address Strobe (SDCAS
)—Output............................. 2-22
2.2.2.15 ROM Bank 0 Select (RCS0
)—Output...................................................... 2-22
2.2.2.16 ROM Bank 1 Select (RCS1
)—Output...................................................... 2-22
2.2.2.17 Flash Output Enable (FOE
)—Output....................................................... 2-23
2.2.2.18 Address Strobe (AS
)—Output.................................................................. 2-23
2.2.3 EPIC Control Signals.................................................................................... 2-23
2.2.3.1 Discrete Interrupt 0:4 (IRQ[0:4])—Input................................................. 2-23
2.2.3.2 Serial Interrupt Mode Signals................................................................... 2-24
2.2.3.2.1 Serial Interrupt Stream (S_INT)—Input............................................... 2-24
2.2.3.2.2 Serial Interrupt Clock (S_CLK)—Output ............................................ 2-24
2.2.3.2.3 Serial Interrupt Reset (S_RST)—Output.............................................. 2-24
2.2.3.2.4 Serial Interrupt Frame (S_FRAME
)—Output...................................... 2-24
2.2.3.3 Local Interrupt (L_INT
)—Output ............................................................ 2-24
2.2.4 I
2
C Interface Control Signals........................................................................ 2-25
2.2.4.1 Serial Data (SDA)..................................................................................... 2-25
2.2.4.1.1 Serial Data (SDA)—Output.................................................................. 2-25
2.2.4.1.2 Serial Data (SDA)—Input .................................................................... 2-25