© Copyright 2008 WIZnet Co., Inc. All rights reserved.
W
W
5
5
3
3
0
0
0
0
E
E
0
0
1
1
-
-
A
A
R
R
M
M
U
U
s
s
e
e
r
r
’
’
s
s
M
M
a
a
n
n
u
u
a
a
l
l
12
3.2.11.
Expansion Port Interface
Expansion port interface is designed for user to add the functions that S3C2410A provides (but W5300E01-
ARM does not).
Function
Pin #
Pin Name
Dir.
Description
J3 Port
Power
1
3V3D
3.3V System power
3
5V0D
5V System power
39 GND
System
ground
System
Data Bus
2,4,6,8,10,12,
14,16,18,20,22,
24,26,28,30,32
D0 ~ D15
IO Data
bus
System
Address
Bus
5,7,9,11,13,15,
17,19,21,23,25,
27,29,31,33,35
A0 ~ A15
O Address
bus
System
Control
Signal
34
nGCS0
O
General chip select 0
36 nOE
O
Output
enable
37
nRESET
I
System reset input
38 nWE
O
Write
enable
40
EINT0
IO
External interrupt request / GPIO
J4 Port
Power
1
3V3D
3.3V System power
3
5V0D
5V System power
39 GND
System
ground
38 VDDA_ADC
3.3V
ADC
power
40 VSSA_ADC
ADC
ground
DMA
2
nXDACK0
O
External DMA acknowledge
4
nXDREQ0
I
External DMA request
I2S
Interface
5
I2SLRCK
IO
I2S bus channel select clock
7
I2SSCLK
IO
I2S bus serial clock
9 CDCLK
O
CODEC
system
clock
11
I2SSDI
I
I2S bus serial data input
13
I2SSDO
O
I2S bus serial data output
UART
Interface
10
TXD1
O
UART1 transmit data output
12
RXD1
I
UART1 receive data input
14
TXD2
O
UART2 transmit data output
