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Section 8 I/O Ports
Port
Description
Bit
Port 7
General input
7
port also
6
functioning as
5
A/D converter
analog input
4
3
2
1
0
Port 8
General I/O
6
port also
5
functioning as
4
interrupt input,
and SCI_1 and
3
LPC
2
inputs/outputs
1
0
Port 9
General I/O
7
port also
6
functioning as
external sub-
5
clock and
4
interrupt inputs,
SMBUS/IIC_0
3
input/output,
2
and system
clock output
1
0
Rev. 1.00 May 09, 2008 Page 152 of 954
REJ09B0462-0100
Function
I/O
Input
P77/AN7
P76/AN6
P75/AN5
P74/AN4
P73/AN3
P72/AN2
P71/AN1
P70/AN0
IRQ5
P86/SCK1
IRQ4/RxD1
P85
IRQ3
P84
LPCPD
P83
P82/CLKRUN
P81/GA20
P80/PME
IRQ15
P97/SDA0
P96
EXCL
IRQ14
P95
IRQ13
P94
IRQ12
P93
IRQ0
P92
IRQ1
P91
IRQ2
P90
Input Pull-
up MOS
Output
Function
TxD1
φ
O
LED Drive
Capability
On-Chip
(5 mA Sink
Noise
Current)
Canceler
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