Table 78 - I/O Base Address Configuration Register Description
BASE I/O
LOGICAL
DEVICE LOGICAL REGISTER
RANGE
(NOTE3)
FIXED
BASE OFFSETS
NUMBER DEVICE
INDEX
0x00
FDC
0x60,0x61
[0x100:0x0FF8]
+0 : SRA
+1 : SRB
(Note 4)
ON 8 BYTE BOUNDARIES +2 : DOR
+3 : TSR
+4 : MSR/DSR
+5 : FIFO
+7 : DIR/CCR
0x01
IDE1
0x60,0x61
[0x100:0x0FF8]
IDE TASK
+0 : Data Register (16 bit)
+1 : ERRF/WPRE
+2 : Sector Count
+3 : Sector Number
+4 : Cylinder Low
+5 : Cylinder High
+6 : Head,Drive
(Note 4)
ON 8 BYTE BOUNDARIES
+7 : Status/Command
0x62,0x63
0x60,0x61
[0x100:0x0FFF]
ON 1 BYTE BOUNDARIES
IDE MISC AT
+ 0 : Status/Fixed Disk
0x02
IDE2
[0x100:0x0FF8]
IDE TASK
+0 : Data Register (16 bit)
+1 : ERRF/WPRE
+2 : Sector Count
+3 : Sector Number
+4 : Cylinder Low
+5 : Cylinder High
+6 : Head,Drive
(Note 4)
ON 8 BYTE BOUNDARIES
+7 : Status/Command
0x62,0x63
[0x100:0x0FFF]
IDE MISC AT
ON 1 BYTE BOUNDARIES
+ 0 : Status/Fixed Disk
183
SMSC [ SMSC CORPORATION ]
