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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
J3 Port
Power
1
3
39
System
2,4,6,8,10,12,
Data Bus
14,16,18,20,22,
24,26,28,30,32
System
5,7,9,11,13,15,
Address
17,19,21,23,25,
Bus
27,29,31,33,35
System
34
Control
36
Signal
37
38
40
J4 Port
Power
1
3
39
38
40
DMA
2
4
I2S
5
Interface
7
9
11
13
UART
10
Interface
12
14
Pin #
Pin Name
3V3D
5V0D
GND
D0 ~ D15
A0 ~ A15
nGCS0
nOE
nRESET
nWE
EINT0
3V3D
5V0D
GND
VDDA_ADC
VSSA_ADC
nXDACK0
nXDREQ0
I2SLRCK
I2SSCLK
CDCLK
I2SSDI
I2SSDO
TXD1
RXD1
TXD2
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Description
3.3V System power
5V System power
System ground
IO
Data bus
O
Address bus
O
General chip select 0
O
Output enable
I
System reset input
O
Write enable
IO
External interrupt request / GPIO
3.3V System power
5V System power
System ground
3.3V ADC power
ADC ground
O
External DMA acknowledge
I
External DMA request
IO
I2S bus channel select clock
IO
I2S bus serial clock
O
CODEC system clock
I
I2S bus serial data input
O
I2S bus serial data output
O
UART1 transmit data output
I
UART1 receive data input
O
UART2 transmit data output
12
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