W83637HF Datasheet, PDF (119/149 Pages) Winbond – LPC I/O

W83637HF
CRF0 (Default 0x80)
Bit 7 - 6 : KBC clock rate selection
= 00 Select 6 MHz as KBC clock input.
= 01 Select 8 MHz as KBC clock input.
= 10 Select 12 MHz as KBC clock input.
= 11 Select 16 MHz as KBC clock input.
(W83637HF-AW can support these 4 kinds of clock input)
Bit 5 - 3 : Reserved.
Bit 2 = 0 Port 92 disable.
= 1 Port 92 enable.
Bit 1 = 0 Gate20 software control.
= 1 Gate20 hardware speed up.
Bit 0 = 0 KBRST software control.
= 1 KBRST hardware speed up.
8.3.6 Logical Device 6 (CIR)
CR30 (Default 0x00)
Bit 7 - 1 : Reserved.
Bit 0 = 1 Activates the logical device.
= 0 Logical device is inactive.
CR60, CR 61 (Default 0x00, 0x00)
These two registers select CIR I/O base address [0x100:0xFF8] on 8 byte boundary.
CR70 (Default 0x00)
Bit 7 - 4 : Reserved.
Bit [3:0] : These bits select IRQ resource for CIR.
8.3.7 Logical Device 7 (Game Port and MIDI Port and GPIO Port 1)
CR30 (Default 0x00)
Bit 7 - 1 : Reserved.
Bit 0 = 1 Activate Game Port and MIDI Port.
= 0 Game Port and MIDI Port is inactive.
CR60, CR 61 (Default 0x02, 0x01 if PNPCSV = 0 during POR, default 0x00 otherwise)
These two registers select the Game Port base address [0x100:0xFFF] on 1 byte boundary.
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Publication Release Date: June 25, 2003
Revision 1.3