EP9302 Datasheet, PDF (39/42 Pages) Cirrus Logic – High-speed ARM9 System-on-chip Processor with MaverickCrunch

EP9302
High-speed ARM9 System-on-chip Processor with MaverickCrunch
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Table Q. Pin Descriptions
Pin Name
Block
Pad Pull
Type Type
Description
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
JTAG
JTAG
JTAG
JTAG
JTAG
System
PLL
PLL
PLL
PLL
RTC
RTC
EBUS
EBUS
EBUS
EBUS
EBUS
EBUS
EBUS
EBUS
SDRAM
SDRAM
SDRAM
SDRAM
SDRAM
SDRAM
ADC
ADC
ADC
USB
USB
UART1
UART1
UART1
UART1
UART1
UART1
UART2
UART2
I
I
4ma
I
I
I
A
A
P
G
A
A
4ma
4ma
I
8ma
8ma
4ma
4ma
8ma
8ma
8ma
4ma
8ma
8ma
8ma
A
P
G
A
A
4ma
I
I
I
4ma
4ma
4ma
I
PD JTAG clock in
PD JTAG data in
JTAG data out
PD JTAG test mode select
PD JTAG reset
PD 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
PU SRAM Wait in
Shared Address bus out
PU Shared Data bus in/out
PU Chip select out
PU 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
PU Receive in
PU Clear to send / transmit enable
PU Data set ready / Data Carrier Detect
Data Terminal Ready output
Ready to send
Transmit / IrDA output
PU Receive / IrDA input
Table Q. Pin Descriptions (Continued)
Pin Name
Block
Pad Pull
Type Type
Description
MDC
EMAC 4ma
Management data clock
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],
INT[1:0]
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
EGPIO[15:0] GPIO I/O, 4ma PU Enhanced GPIO
FGPIO[3:1]
GPIO I/O, 8ma PU GPIO on Port F
HGPIO[5:2]
GPIO I/O, 8ma PU GPIO on Port H
CGPIO[0]
GPIO I/O, 8ma PU GPIO on Port C
CVDD
Power
P
Digital power, 1.8V
RVDD
Power
P
Digital power, 3.3V
CGND
Ground
G
Digital ground
RGND
Ground
G
Digital ground
DS653PP3
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