參數(shù)資料
型號(hào): EP7312-ER-C
廠商: Cirrus Logic, Inc.
英文描述: HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH SDRAM AND ENHANCED DIGITAL AUDIO INTERFACE
中文描述: 高性能,低功率系統(tǒng),片上內(nèi)存和增強(qiáng)的數(shù)字音頻接口
文件頁(yè)數(shù): 32/64頁(yè)
文件大小: 1710K
代理商: EP7312-ER-C
32
Copyright Cirrus Logic, Inc. 2003
(All Rights Reserved)
DS508PP5
EP7312
High-Performance, Low-Power System on Chip
208-Pin LQFP Numeric Pin Listing
Table 20. 208-Pin LQFP Numeric Pin Listing
Pin
No.
Signal
Strength
Reset
State
Type
Description
1
nCS[5]
1
Low
O
Chip select 5
2
VDDIO
Pad Pwr
Digital I/O power, 3.3 V
3
VSSIO
Pad Gnd
I/O ground
4
EXPCLK
1
I
Expansion clock input
5
WORD
1
Low
O
Word access select output
6
WRITE/nSDRAS
1
Low
O
Transfer direction / SDRAM
RAS signal output
7
RUN/CLKEN
1
Low
O
Run output / clock enable
output
8
EXPRDY
1
I
Expansion port ready input
9
TXD[2]
1
High
O
UART 2 transmit data output
10
RXD[2]
I
UART 2 receive data input
11
TDI
with p/u*
I
JTAG data input
12
VSSIO
Pad Gnd
I/O ground
13
PB[7]
1
Input
I/O
GPIO port B
14
PB[6]
1
Input
I/O
GPIO port B
15
PB[5]
1
Input
I/O
GPIO port B
16
PB[4]
1
Input
I/O
GPIO port B
17
PB[3]
1
Input
I/O
GPIO port B
18
PB[2]
1
Input
I/O
GPIO port B
19
PB[1]
1
Input
I/O
GPIO port B
20
PB[0]
1
Input
I/O
GPIO port B
21
VDDIO
Pad Pwr
Digital I/O power, 3.3 V
22
TDO
1
Input
O
JTAG data out
23
PA[7]
1
Input
I/O
GPIO port A
24
PA[6]
1
Input
I/O
GPIO port A
25
PA[5]
1
Input
I/O
GPIO port A
26
PA[4]
1
Input
I/O
GPIO port A
27
PA[3]
1
Input
I/O
GPIO port A
28
PA[2]
1
Input
I/O
GPIO port A
29
PA[1]
1
Input
I/O
GPIO port A
30
PA[0]
1
Input
I/O
GPIO port A
31
LEDDRV
1
Low
O
IR LED drive
32
TXD[1]
1
High
O
UART 1 transmit data out
33
VSSIO
1
High
Pad Gnd
I/O ground
34
PHDIN
I
Photodiode input
35
CTS
I
UART 1 clear to send input
36
RXD[1]
I
UART 1 receive data input
37
DCD
I
UART 1 data carrier detect
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