W83977G-A Nuvoton Technology Corporation of America, W83977G-A Datasheet - Page 142

• Manufacturer Part Number: W83977G-A
• Description: IC I/O CONTROLLER 128-PQFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83977G-A

• Pin Count: 128
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

13.8 Logical Device 6 (IR)
CR30 (Default 0x00)
CR31
CR60, CR 61 (Default 0x00, 0x00)
CR70 (Default 0x00)
CR71 (Default 0x02, read only)
= 11 Select 16Mhz as KBC 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.
Bit 7-1 : Reserved.
Bit 0 :
= 1 Activates the logical device.
= 0 Logical device is inactive.
Bit 7-2 : Reserved.
Bit 1 : ENRNGCK -- > Enable I/O Range check
Bit 0 : FORIORD --> Forces LDN to respond I/O read
These two registers select IR I/O base address [0x100:0xFF8] on 8 byte boundaries.
Bit 7-4 : Reserved.
Bit [3:0] : These bits select IRQ resource for IR.
Bit 7-2 : Reserved.
Bit 1 : IRQLEV -- > IRQ Level
= 1: High; = 0: Low
Bit 0 : IRQTYPE --> IRQ Type
= 1: Level trigger; = 0: Edge trigger
W83977F-A/ W83977G-A/ W83977AF-A/ W83977AG-A
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