2.4.17
BIOS Debug Port (CN19)
Pin
1
2
3
4
5
6
7
8
2.4.18
PS/2 Keyboard/Mouse Combo Port (CN22)
Pin
1
2
3
4
5
6
Chapter 2 – Hardware Information
P IN 1
P IN 3
P IN 5
P IN 7
Pin name
+3.3VSB
GND
SPI_CS
SPI_CLK
SPI_MISO
SPI_MOSI
NC
NC
Pin name
KB_ DATA
KB_CLK
GND
+5VSB
MS_DATA
MS_CLK
P IN 2
P IN 4
P IN 6
P IN 8
Signal Type
PWR
GND
IN
IN
OUT
IN
Signal Type
I/O
I/O
GND
PWR
I/O
I/O
Signal Level
+3.3V
Signal Level
+5V
+5V
+5V
+5V
+5V
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