
W83637HF
Publication Release Date: June 25, 2003
- 22 -
Revision 1.3
5.10 General Purpose I/O Port
5.10.1 General Purpose I/O Port 1 (Power source is Vcc)
see 1.8 Game Port
5.10.2 General Purpose I/O Port 2 (Power source is Vcc)
SYMBOL
IRTX
GP26
IRRX
GP25
PIN
87
I/O
FUNCTION
O
12t
I/OD
12t
IN
ts
I/OD
12ts
O
12t
I/OD
12t
O
24t
I/OD
24t
I/OD
24t
I/OD
24t
General purpose I/O port 2 bit 6.
Alternate Function Output: Infrared Transmitter Output. (Default)
General purpose I/O port 2 bit 5.
Alternate Function Input: Infrared Receiver input. (Default)
88
WDTO
GP24
89
General purpose I/O port 2 bit 4.
Watch dog timer output. (Default)
PLED
GP23
90
General purpose I/O port 2 bit 3.
Power LED output, this signal is low after system reset. (Default)
GP22
91
General purpose I/O port 2 bit 2.
GP21
92
General purpose I/O port 2 bit 1.
5.10.3 General Purpose I/O Port 3 (Power source is VSB)
SYMBOL
SUSLED
GP35
PIN
64
I/O
FUNCTION
O
24t
I/OD
24t
In
ts
I/OD
12ts
Suspend LED output, it can program to flash when suspend
state. This function can work without VCC. (Default)
General purpose I/O port 3 bit 5
CIRRX
SDDET
GP34
RSMRST#
GP33
69
Consumer IR receiving input. This pin can Wake-Up system
from S5
(Default)
SD Card External Card Detect.
General purpose I/O port 3 bit 4
70
OD
12t
I/OD
12t
OD
12t
I/OD
12t
O
12t
I/OD
12t
IN
ts
I/OD
12ts
This pin generates the RSMRST signal while the VSB come in.
(Default)
General purpose I/O port 3 bit 3
PWROK
GP32
71
This pin generates the PWROK signal while the VCC come in.
(Default)
General purpose I/O port 3 bit 2.
PWRCTL#
GP31
72
This pin generates the PWRCTL# signal while the power failure.
(Default)
General purpose I/O port 3 bit 1.
SLP_SX#
GP30
73
Chip Set sleep state input.
General purpose I/O port 3 bit 0.