W83977F Datasheet, PDF (146/181 Pages) Winbond – PLUG & PLAY 1.0A COMPLIANT

W83977F/ W83977AF
10.9 Logical Device 7 (Auxiliary I/O Part I)
PRELIMINARY
CR30 (Default 0x00)
Bit 7-1 : Reserved.
Bit 0 : = 1 Activates the logical device.
= 0 Logical device is inactive.
CR31
Bit 7-2 : Reserved.
Bit 1 : ENRNGCK -- > Enable I/O Range check
Bit 0 : FORIORD --> Forces LDN to respond I/O read
CR60, CR 61 (Default 0x00, 0x00)
These two registers select GP1 I/O base address [0x100:0xFFF] on 1 byte boundaries.
CR62, CR 63 (Default 0x00, 0x00)
These two registers select GP14 alternate function Primary I/O base address [0x100:0xFFE] on 2
byte boundaries; They are available as you setting GP14 to be an alternate function (General
Purpose Address Decode).
CR64, CR 65 (Default 0x00, 0x00)
These two registers select GP15 alternate function Primary I/O base address [0x100:0xFFF] on 1
byte boundaries; They are available as you setting GP15 to be an alternate function (General
Purpose Write Decode).
CR70 (Default 0x00)
Bit 7-4 : Reserved.
Bit 3-0 : These bits select IRQ resource for GP10 as you setting GP10 to be an alternate function
(Interrupt Steering).
CR71 (Default 0x02, read only)
Bit 7-2 : Reserved.
Bit 1 : IRQLEV -- > IRQ Level
= 1: High; = 0: Low
Bit 0 : IRQTYPE --> IRQ Type
= 1: Level trigger; = 0: Edge trigger
CR72 (Default 0x00)
Bit 7-4 : Reserved.
Bit 3-0 : These bits select IRQ resource for GP11 as you setting GP10 to be an alternate function
(Interrupt Steering).
CR73 (Default 0x02)
Bit 7-2 : Reserved.
Bit 1 : IRQLEV -- > IRQ Level
= 1: High; = 0: Low
Bit 0 : IRQTYPE --> IRQ Type
= 1: Level trigger; = 0: Edge trigger
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Publication Release Date: March 1998
Revision 0.58