W83627HF/ F/ HG/ G
9.3
Logical Device 0 （FDC）
CR30 （Default 0x01 if PNPCVS = 0 during POR, default 0x00 otherwise）
BIT
7 - 1
0
DESCRIPTION
Reserved.
Logic device activation control
1： Active
0： Inactived
CR60, CR 61 （Default 0x03, 0xf0 if PNPCVS = 0 during POR, default 0x00, 0x00 otherwise）
These two registers select FDC I/O base address [0x100：0xFF8] on 8 bytes boundary.
CR70 （Default 0x06 if PNPCVS = 0 during POR, default 0x00 otherwise）
BIT
7 - 4
3 - 0
DESCRIPTION
Reserved.
These bits select IRQ resource for FDC.
CR74 （Default 0x02 if PNPCVS = 0 during POR, default 0x04 otherwise）
BIT
7 - 3
2 - 0
DESCRIPTION
Reserved.
These bits select DRQ resource for FDC.
000： DMA0
001： DMA1
010： DMA2
011： DMA3
100 ~ 111： No DMA active
Publication Release Date: June 09, 2006
Revision 2.27
- 87 -
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