W83627HF Datasheet, PDF (158/185 Pages) Winbond – WINBOND I/O

W83627HF/F
PRELIMINARY
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 1: PIN119S
= 0 MS1 (MIDI Serial Input)
= 1 GP20
CR2B(GPIO multiplexed pin selection register 2. VCC powered. Default 0XC0)
Bit 7:PIN92S
= 0 SCL
= 1 GP21
Bit 6:PIN91S
= 0 SDA
= 1 GP22
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Publication Release Date: Jul 1999
Revision 0.53