VT82C686B

Manufacturer Part NumberVT82C686B
ManufacturerETC-unknow
VT82C686B datasheet
 


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Page 79/128

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Offset 70 – Primary IDE Status ....................................... RW
7
Interrupt Status
6
Prefetch Buffer Status
5
Post Write Buffer Status
4
DMA Read Prefetch Status
3
DMA Write Prefetch Status
2
S/G Operation Complete
1
FIFO Empty Status
0
Response to External DMAREQ
Offset 71 – Primary Interrupt Control ............................ RW
7-1
Reserved
........................................ always reads 0
0
Flush FIFO Before Generating IDE Interrupt
0
Disable ...................................................default
1
Enable
Revision 1.71 June 9, 2000
Offset 78 – Secondary IDE Status ................................... RW
7
Interrupt Status
6
Prefetch Buffer Status
5
Post Write Buffer Status
4
DMA Read Prefetch Status
3
DMA Write Prefetch Status
2
S/G Operation Complete
1
FIFO Empty Status
0
Response to External DMAREQ
Offset 79 - Secondary Interrupt Control ........................ RW
7-1
Reserved
........................................always reads 0
0
Flush FIFO Before Generating IDE Interrupt
0
Disable................................................... default
1
Enable
-73-
Function 1 Registers - Enhanced IDE Controller
VT82C686B