ep9301 Cirrus Logic, Inc., ep9301 Datasheet - Page 38

• Manufacturer Part Number: ep9301
• Description: Entry-level Arm9 System-on-chip Processor
• Manufacturer: Cirrus Logic, Inc.

EP9301
Entry Level ARM9 System-on-Chip Processor
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38
TCK
TDI
TDO
TMS
TRSTn
BOOT[1:0]
XTALI
XTALO
VDD_PLL
GND_PLL
RTCXTALI
RTCXTALO
WRn
RDn
WAITn
AD[25:0]
DA[15:0]
CSn[3:0]
CSn[7:6]
DQMn[1:0]
SDCLK
SDCLKEN
SDCSn[3:0]
RASn
CASn
SDWEn
ADC[4:0]
VDD_ADC
GND_ADC
USBp[2, 0]
USBm[2, 0]
TXD0
RXD0
CTSn
DSRn
DTRn
RTSn
TXD1
RXD1
MDC
MDIO
RXCLK
MIIRXD[3:0]
RXDVAL
RXERR
TXCLK
MIITXD[3:0]
Pin Name
SDRAM
SDRAM
SDRAM
SDRAM
SDRAM
SDRAM
System
UART1
UART1
UART1
UART1
UART1
UART1
UART2
UART2
EMAC
EMAC
EMAC
EMAC
EMAC
EMAC
EMAC
EMAC
Block
EBUS
EBUS
EBUS
EBUS
EBUS
EBUS
EBUS
EBUS
JTAG
JTAG
JTAG
JTAG
JTAG
RTC
RTC
ADC
ADC
ADC
USB
USB
PLL
PLL
PLL
PLL
Table Q. Pin Description
Type
4ma
4ma
4ma
8ma
8ma
4ma
4ma
8ma
8ma
8ma
4ma
8ma
8ma
8ma
4ma
4ma
4ma
4ma
4ma
4ma
4ma
Pad
A
A
P
G
A
A
A
P
G
A
A
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
Type
Pull
PD
PD
PD
PD
PD
PU
PU
PU
PU
PU
PU
PU
PU
PU
PD
PD
PD
PD
PU
PD
JTAG clock in
JTAG data in
JTAG data out
JTAG test mode select
JTAG reset
Boot mode select in
Main oscillator input
Main oscillator output
Main oscillator power, 1.8V
Main oscillator ground
RTC oscillator input
RTC oscillator output
SRAM Write strobe out
SRAM Read / OE strobe out
SRAM Wait in
Shared Address bus out
Shared Data bus in/out
Chip select out
Chip select out
Shared data mask out
SDRAM clock out
SDRAM clock enable out
SDRAM chip selects out
SDRAM RAS out
SDRAM CAS out
SDRAM write enable out
External Analog Measurement Input
ADC power, 3.3V
ADC ground
USB positive signals
USB negative signals
Transmit out
Receive in
Clear to send / transmit enable
Data set ready / Data Carrier Detect
Data Terminal Ready output
Ready to send
Transmit / IrDA output
Receive / IrDA input
Management data clock
Management data input/output
Receive clock in
Receive data in
Receive data valid
Receive data error
Transmit clock in
Transmit data out
©
Copyright 2005 Cirrus Logic (All Rights Reserved)
Description
TXEN
TXERR
CRS
CLD
GRLED
RDLED
EECLK
EEDAT
ABITCLK
ASYNC
ASDI
ASDO
ARSTn
SCLK1
SFRM1
SSPRX1
SSPTX1
INT[3], INT[1:0]
PRSTn
RSTOn
EGPIO[15:0]
FGPIO[3:1]
HGPIO[5:2]
CGPIO[0]
CVDD
RVDD
CGND
RGND
Pin Name
EEPROM
EEPROM
Ground
Ground
Syscon
Syscon
Block
EMAC
EMAC
EMAC
EMAC
Power
Power
AC97
AC97
AC97
AC97
AC97
GPIO
GPIO
GPIO
GPIO
Table Q. Pin Description (Continued)
SPI1
SPI1
SPI1
SPI1
LED
LED
INT
I/O, 8ma
I/O, 8ma
I/O, 4ma
I/O, 8ma
I/O, 8ma
I/O, 8ma
12ma
12ma
Type
Pad
4ma
4ma
4ma
4ma
8ma
8ma
8ma
8ma
8ma
4ma
G
G
P
P
I
I
I
I
I
I
Type
Pull
PD
PD
PD
PU
PU
PU
PD
PD
PD
PU
PD
PD
PD
PD
PU
PU
PU
PU
PU
Transmit enable
Transmit error
Carrier sense
Collision detect
Green LED
Red LED
EEPROM / Two-wire Interface clock
EEPROM / Two-wire Interface data
AC97 bit clock
AC97 frame sync
AC97 Primary input
AC97 output
AC97 reset
SPI bit clock
SPI Frame Clock
SPI input
SPI output
External interrupts
Power on reset
User Reset in out - open drain
Enhanced GPIO
GPIO on Port F
GPIO on Port H
GPIO on Port C
Digital power, 1.8V
Digital power, 3.3V
Digital ground
Digital ground
Description
DS636PP5