參數(shù)資料
型號(hào): EP9301-IQ
廠商: Cirrus Logic, Inc.
英文描述: Entry-level ARM9 System-on-chip Processor
中文描述: 入門級(jí)ARM9的系統(tǒng)芯片處理器
文件頁數(shù): 38/41頁
文件大?。?/td> 297K
代理商: EP9301-IQ
38
Copyright 2005 Cirrus Logic (All Rights Reserved)
DS636PP5
EP9301
Entry Level ARM9 System-on-Chip Processor
.
Table Q. Pin Description
Pin Name
Block
Pad
Type
Pull
Type
Description
TCK
JTAG
I
PD
JTAG clock in
TDI
JTAG
I
PD
JTAG data in
TDO
JTAG
4ma
JTAG data out
TMS
JTAG
I
PD
JTAG test mode select
TRSTn
JTAG
I
PD
JTAG reset
BOOT[1:0]
System
I
PD
Boot mode select in
XTALI
PLL
A
Main oscillator input
XTALO
PLL
A
Main oscillator output
VDD_PLL
PLL
P
Main oscillator power, 1.8V
GND_PLL
PLL
G
Main oscillator ground
RTCXTALI
RTC
A
RTC oscillator input
RTCXTALO
RTC
A
RTC oscillator output
WRn
EBUS
4ma
SRAM Write strobe out
RDn
EBUS
4ma
SRAM Read / OE strobe out
WAITn
EBUS
I
PU
SRAM Wait in
AD[25:0]
EBUS
8ma
Shared Address bus out
DA[15:0]
EBUS
8ma
PU
Shared Data bus in/out
CSn[3:0]
EBUS
4ma
PU
Chip select out
CSn[7:6]
EBUS
4ma
PU
Chip select out
DQMn[1:0]
EBUS
8ma
Shared data mask out
SDCLK
SDRAM
8ma
SDRAM clock out
SDCLKEN
SDRAM
8ma
SDRAM clock enable out
SDCSn[3:0]
SDRAM
4ma
SDRAM chip selects out
RASn
SDRAM
8ma
SDRAM RAS out
CASn
SDRAM
8ma
SDRAM CAS out
SDWEn
SDRAM
8ma
SDRAM write enable out
ADC[4:0]
ADC
A
External Analog Measurement Input
VDD_ADC
ADC
P
ADC power, 3.3V
GND_ADC
ADC
G
ADC ground
USBp[2, 0]
USB
A
USB positive signals
USBm[2, 0]
USB
A
USB negative signals
TXD0
UART1
4ma
Transmit out
RXD0
UART1
I
PU
Receive in
CTSn
UART1
I
PU
Clear to send / transmit enable
DSRn
UART1
I
PU
Data set ready / Data Carrier Detect
DTRn
UART1
4ma
Data Terminal Ready output
RTSn
UART1
4ma
Ready to send
TXD1
UART2
4ma
Transmit / IrDA output
RXD1
UART2
I
PU
Receive / IrDA input
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
4ma
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
I/O, 8ma
PD
SPI bit clock
SFRM1
SPI1
I/O, 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
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
Table Q. Pin Description (Continued)
Pin Name
Block
Pad
Type
Pull
Type
Description
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