W83627HF/ F/ HG/ G
6.9
General Purpose I/O Port
6.9.1 General Purpose I/O Port 1 （Power source is Vcc）
See section 7.8
6.9.2 General Purpose I/O Port 2 （Power source is Vcc）
SYMBOL
GP20
MSI
PIN
I/O
I/OD12t
INt
FUNCTION
General purpose I/O port 2 bit 0.
119
MIDI serial data input. Schmitt trigger input with internal pull-up
resistor.
GP21
SCL
92
91
90
I/OD12t
INts
General purpose I/O port 2 bit 1.
Serail Bus Clock.（availiable for W83627HF only）
GP22
SDA
I/OD12t
I/OD12ts
I/OD12t
OD12
General purpose I/O port 2 bit 2.
Serial Bus Data.（availiable for W83627HF only）
GP23
PLED
General purpose I/O port 2 bit 3.
Power LED output, this signal will be logical low after system
reset.
GP24
89
I/OD12t
O12
General purpose I/O port 2 bit 4.
WDTO
Watch Dog Timer Output. High level indicates that Watch Dog
Timer time-out occurs.
GP25
IRRX
88
87
2
I/OD12t
INts
General purpose I/O port 2 bit 5.
Infrared Receiver Input.
GP26
IRTX
I/OD12t
O12
General purpose I/O port 2 bit 6.
Infrared Transmitter Output.
GP27
SMI#
I/OD24t
OD24
INt
General purpose I/O port 2 bit 7.
System Management Interrupt.
( IRQIN1)
(Interrupt channel input. For C version only)
DRVDEN1
OD24
Drive Density Select bit 1.（Default）
Publication Release Date: June 09, 2006
- 25 -
Revision 2.27
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