
Technical Reference
Table 20.
Map (continued)
Table 20.
Map (continued)
Address
Description
0377
1 byte
Floppy
2 Cmd.
,
, ,
. . . . . .
bit
7
1 bit
Floppy Disk Chg. Chan. 2
7 bits
Sec. IDE Chan. Status Port
bytes FM Synthesizer
2 bytes VGA
03BA
1 byte
VGA
. . . . . .
.I
, . . . . . . . , ,
03BC
4
bytes Parallel Port 3
byte
VGA
_
2
bytes VGA
.
, , , ,
, ,
,
, ,
03DA
1 byte VGA
. .
- 03EF
8 bytes Serial Port 3
-
6 bytes
Floppy Channel 1
Pri. IDE Chan. Cmd. Port
,
continued
Address
Size
bit”7
bits 6:0 7 bits
8 bytes
04D0 -
2 bytes
0530 0537
8 bytes
0604 - 060B
bytes
0CF8 -
4
b y t e s
1 byte
OCFC OCFF
4 bytes
OE80 OE87
8 bytes
OF40 OF47
8 bytes
OF86 OF87
2 bytes
FFOO - FF07
8 bytes
FFAO FFA7
8 bytes
FFA8 FFAF
8 bytes
* Only by DWORD accesses.
l
* Only by Byte accesses.
Description
Floppy Disk Chg. Chan. 1
Pri. IDE Chan. Status Port
Serial Port 1
Edge/level triggered PIC
ECP port, LPT + 400h
Turbo Reset Control Reg.
PCI
Windows Sound System
Windows Sound System
Yamaha
IDE Bus Master Reg.
Pri. Bus Master IDE Reg.
.
,
Sec. Bus Master IDE Reg.