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EP7312_05 Datasheet, PDF (32/64 Pages) Cirrus Logic – High-performance, Low-power, System-on-chip with SDRAM & Enhanced with SDRAM & Enhanced | |||
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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
1
nCS[5]
2
VDDIO
3
VSSIO
4
EXPCLK
5
WORD
6
WRITE/nSDRAS
7
RUN/CLKEN
8
EXPRDY
9
TXD[2]
10
RXD[2]
11
TDI
12
VSSIO
13
PB[7]
14
PB[6]
15
PB[5]
16
PB[4]
17
PB[3]
18
PB[2]
19
PB[1]
20
PB[0]
21
VDDIO
22
TDO
23
PA[7]
24
PA[6]
25
PA[5]
26
PA[4]
27
PA[3]
28
PA[2]
29
PA[1]
30
PA[0]
31
LEDDRV
32
TXD[1]
33
VSSIO
34
PHDIN
35
CTS
36
RXD[1]
37
DCD
â
Strength
1
1
1
1
1
1
1
with p/u*
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Reset
State
Low
Low
Low
Low
High
â¡
Input
â¡
Input
â¡
Input
Inputâ¡
Inputâ¡
â¡
Input
â¡
Input
â¡
Input
â¡
Input
Inputâ¡
Inputâ¡
â¡
Input
â¡
Input
â¡
Input
â¡
Input
â¡
Input
â¡
Input
Low
High
High
Type
O
Pad Pwr
Pad Gnd
I
O
O
O
I
O
I
I
Pad Gnd
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Pad Pwr
O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
Pad Gnd
I
I
I
I
Description
Chip select 5
Digital I/O power, 3.3 V
I/O ground
Expansion clock input
Word access select output
Transfer direction / SDRAM
RAS signal output
Run output / clock enable
output
Expansion port ready input
UART 2 transmit data output
UART 2 receive data input
JTAG data input
I/O ground
GPIO port B
GPIO port B
GPIO port B
GPIO port B
GPIO port B
GPIO port B
GPIO port B
GPIO port B
Digital I/O power, 3.3 V
JTAG data out
GPIO port A
GPIO port A
GPIO port A
GPIO port A
GPIO port A
GPIO port A
GPIO port A
GPIO port A
IR LED drive
UART 1 transmit data out
I/O ground
Photodiode input
UART 1 clear to send input
UART 1 receive data input
UART 1 data carrier detect
32
©Copyright Cirrus Logic, Inc. 2005
(All Rights Reserved)
DS508F1
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