W83637HF Datasheet, PDF (110/149 Pages) Winbond – LPC I/O

W83637HF
CR2A (GPIO multiplexed pin selection register 1. VCC powered. Default 0X7C)
Bit 7 : Port Select (select Game Port or General Purpose I/O Port 1)
= 0 Game Port
= 1 General Purpose I/O Port 1
pin121~128 select function GP10~GP17 or KBC Port 1)
Bit 6 : PIN128S
= 0 8042 P12
= 1 GP10
Bit 5 : PIN127S
= 0 8042 P13
= 1 GP11
Bit 4 : PIN126S
= 0 8042 P14
= 1 GP12
Bit 3 : PIN125S
= 0 8042 P15
= 1 GP13
Bit 2 : PIN124S
= 0 8042 P16
= 1 GP14
Bit 1 : PIN120S
= 0 MSO (MIDI Serial Output)
= 1 IRQIN0 (select IRQ resource through CRF4 Bit 7-4 of Logical Device 8)
Bit 0 : PIN119S
= 0 MS1 (MIDI Serial Input)
= 1 GP20
CR2B(GPIO multiplexed pin selection register 2. VCC powered. Default 0XC0)
Bit 7 : PIN92S
= 0 Reserved
= 1 GP21
Bit 6 : PIN91S
= 0 Reserved
= 1 GP22
Bit 5 : PIN90S
= 0 PLED (PLED0 control bits are in CRF5 of Logical Device 8)
= 1 GP23
Bit 4 : PIN89S
= 0 WDTO (Watch Dog Timer is controlled by CRF5, CRF6, CRF7 of Logical Device
8)
= 1 GP24
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Publication Release Date: June 25, 2003
Revision 1.3