ep7312 Cirrus Logic, Inc., ep7312 Datasheet - Page 32

• Manufacturer Part Number: ep7312
• Description: High-performance, Low-power, System-on-chip With Sdram & Enhanced Digital Audio Interface
• Manufacturer: Cirrus Logic, Inc.

EP7312
High-Performance, Low-Power System on Chip
208-Pin LQFP Numeric Pin Listing
32
Pin
No.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
1
2
3
4
5
6
7
8
9
WRITE/nSDRAS
RUN/CLKEN
EXPCLK
EXPRDY
LEDDRV
VDDIO
WORD
TXD[2]
RXD[2]
VDDIO
PHDIN
RXD[1]
Signal
nCS[5]
VSSIO
VSSIO
TXD[1]
VSSIO
PB[7]
PB[6]
PB[5]
PB[4]
PB[3]
PB[2]
PB[1]
PB[0]
PA[7]
PA[6]
PA[5]
PA[4]
PA[3]
PA[2]
PA[1]
PA[0]
TDO
DCD
CTS
TDI
Table 20. 208-Pin LQFP Numeric Pin Listing
©
Copyright Cirrus Logic, Inc. 2005
Strength
with p/u*
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
(All Rights Reserved)
†
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Reset
State
High
High
High
Low
Low
Low
Low
Low
‡
‡
‡
‡
‡
‡
‡
‡
‡
‡
‡
‡
‡
‡
‡
‡
‡
Pad Gnd
Pad Gnd
Pad Gnd
Pad Pwr
Pad Pwr
Type
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
UART 2 transmit data output
Transfer direction / SDRAM
Expansion port ready input
UART 1 clear to send input
Word access select output
UART 1 data carrier detect
UART 2 receive data input
UART 1 receive data input
Run output / clock enable
UART 1 transmit data out
Digital I/O power, 3.3 V
Digital I/O power, 3.3 V
Expansion clock input
RAS signal output
Photodiode input
JTAG data input
JTAG data out
Chip select 5
IR LED drive
Description
GPIO port B
GPIO port B
GPIO port B
GPIO port B
GPIO port B
GPIO port B
GPIO port B
GPIO port B
GPIO port A
GPIO port A
GPIO port A
GPIO port A
GPIO port A
GPIO port A
GPIO port A
GPIO port A
I/O ground
I/O ground
I/O ground
output
DS508F1