[<<Previous Entry]
[^^Up^^]
[Next Entry>>]
[Menu]
[About The Guide]
0320-0323 ---- XT HDC 1 (Hard Disk Controller)
0320 r/w data register
0321 w reset controller
r read controller hardware status
bit 7-6 = 0
bit 5 logical unit number
bit 4-2 = 0
bit 1 = 0 no error
bit 0 = 0
0322 r read DIPswitch setting on XT controller card
w generate controller-select pulse
0323 w write pattern to DMA and INT mask register
0324-0327 ---- XT HDC 2 (Hard Disk Controller)
0328-032B ---- XT HDC 3 (Hard Disk Controller)
032C-032F ---- XT HDC 4 (Hard Disk Controller)
This page created by ng2html v1.05, the Norton guide to HTML conversion utility.
Written by Dave Pearson