DS638F2 Copyright 2010 Cirrus Logic (All Rights Reserved) 61
EP9315
Enhanced Universal Platform SOC Processor
MDIO EMAC 4ma PU Management data input/output
RXCLK EMAC I PD Receive clock in
MIIRXD[3:0] EMAC I PD Receive data in
RXDVAL EMAC I PD Receive data valid
RXERR EMAC I PD Receive data error
TXCLK EMAC I PU Transmit clock in
MIITXD[3:0] EMAC I PD Transmit data out
TXEN EMAC 4ma PD Transmit enable
TXERR EMAC 4ma PD Transmit error
CRS EMAC I PD Carrier sense
CLD EMAC I PU Collision detect
GRLED LED 12ma Green LED
RDLED LED 12ma Red LED
EECLK EEPROM 4ma PU EEPROM / Two-wire Interface clock
EEDAT EEPROM 4ma PU EEPROM / Two-wire Interface data
ABITCLK AC97 8ma PD AC97 bit clock
ASYNC AC97 8ma PD AC97 frame sync
ASDI AC97 I PD AC97 Primary input
ASDO AC97 8ma PU AC97 output
ARSTn AC97 8ma AC97 reset
SCLK1 SPI1 8ma PD SPI bit clock
SFRM1 SPI1 8ma PD SPI Frame Clock
SSPRX1 SPI1 I PD SPI input
SSPTX1 SPI1 8ma SPI output
INT[3:0] INT I PD External interrupts
PRSTn Syscon I PU Power on reset
RSTOn Syscon 4ma User Reset in out - open drain
SLA[1:0] EEPROM 4ma Flash programming voltage control
VS1 PCMCIA I PU Voltage sense
VS2 PCMCIA I PU Voltage sense
MCD1 PCMCIA I PU Card detect
MCD2 PCMCIA I PU Card detect
MCBVD1 PCMCIA I PU Voltage detection / status change
MCBVD2 PCMCIA I PU Voltage detection
MCDIR PCMCIA 4ma Data transceiver direction control
MCDAENn PCMCIA 4ma Data bus transceiver enable
MCADENn PCMCIA 4ma Address bus transceiver enable
MCREGn PCMCIA 4ma PU Memory card register
MCEHn PCMCIA 4ma PU Memory card high byte select
MCELn PCMCIA 4ma PU Memory card low byte select
IORDn PCMCIA 4ma PU I/O card read
IOWRn PCMCIA 4ma PU I/O card write
MCRDn PCMCIA 4ma PU Memory card read
MCWRn PCMCIA 4ma PU Memory card write
READY PCMCIA I PU Ready / interrupt
WP PCMCIA I PU Write protect
MCWAITn PCMCIA I PU Wait Input
MCRESETn PCMCIA 4ma Card reset
Table S. Pin Descriptions (Continued)
Pin Name Block
Pad
Type
Pull
Type
Description
EGPIO[15:0] GPIO I/O, 4 ma PU Enhanced GPIO
DD[15:8] IDE 8ma PU IDE data bus
DD7 IDE 8ma PD IDE data bus
DD[6:0] IDE 8ma PU IDE data bus
IDEDA[2:0] IDE 8ma IDE Device address output
IDECS0n IDE 8ma IDE Chip Select 0 output
IDECS1n IDE 8ma IDE Chip Select 1 output
DIORn IDE 8ma IDE Read strobe output
DIOWn IDE 8ma IDE Write strobe output
DMACKn IDE 8ma IDE DMA acknowledge output
IORDY IDE I PU IDE ready input
CVDD Power P Digital power, 1.8V
RVDD Power P Digital power, 3.3V
CGND Ground G Digital ground
RGND Ground G Digital ground
Table S. Pin Descriptions (Continued)
Pin Name Block
Pad
Type
Pull
Type
Description
