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2.4.21

LPC Port (CN22)

Pin
Pin Name
1
LAD0
2
LAD1
3
LAD2
4
LAD3
5
+3.3V
6
LFRAME#
7
LRESET#
8
GND
9
LCLK
10
SMB_DATA/I2C_SDA
11
SMB_CLK/I2C_SCL
12
SMB_ALERT/INT_SERIRQ I/O
Note: I2C/SMBus (pins 10, 11, 12) can be set by Bios Option Menu (BOM)
R406/R403/R414: I2C (default)
R405/R408/R411: SMBus
Chapter 2 – Hardware Information
Signal Type
Signal Level
I/O
+3.3V
I/O
+3.3V
I/O
+3.3V
I/O
+3.3V
PWR
+3.3V
IN
OUT
+3.3V
GND
OUT
I/O
+3.3V
OUT
+3.3V
+3.3V
35

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