System Installation
WADE-8044 User’s Manual
3-6
3.5.1 Pin
assignment
J27 : General Purpose I/O Connector
PIN No.
Signal Description
PIN No.
Signal Description
1 GPIO0
2 GPIO4
3 GPIO1
4 GPIO5
5 GPIO2
6 GPIO6
7 GPIO3
8 GPIO7
9 Ground
10 +5V
All General Purpose I/O ports can only apply to standard TTL
±
5% signal level
(0V/5V), and each source sink capacity up to 12mA.
3.5.2
WADE-8044 GPIO Programming Guide
There are 8 GPIO pins on WADE-8044. These GPIO pins are from Super I/O
(W83627DHG-E) and South Bridge (ICH6-M) GPIO pins, and can be programmed as
Input or Output direction.
J27 pin header is for 8 GPIO pins and its pin assignment as following :
J27_Pin1=GPIO1:from ICH6M_GPIO33 with Ext. 4.7K PH
J27_Pin2=GPIO2:from SUPER I/O_GPIO36 with Ext. 4.7K PH
J27_Pin3=GPIO3:from ICH6M_GPIO34 with Ext. 4.7K PH
J27_Pin4=GPIO1:from ICH6M_GPIO27 with Ext. 4.7K PH
J27_Pin5=GPIO3:from SUPER I/O_GPIO21 with Ext. 4.7K PH
J27_Pin6=GPIO2:from ICH6M_GPIO28 with Ext. 4.7K PH
J27_Pin7=GPIO7:from SUPER I/O_GPIO20 with Ext. 4.7K PH
J27_Pin8=GPIO3:from ICH6M_GPIO24 with Ext. 4.7K PH
<<<<< Be careful Pin9=GND , Pin10=VCC >>>>>