I/O Map - Intel PD440FX Product Manual

Table 20. I/O Map
Address
Size
0000 - OOOF
0020 0021 2 bytes
002E 2 bytes
0040 - 0043 \" 4 bytes
0048 004B 4 bytes
0061 1 byte
0064 .'.'
1 bit
0070, bit 7
. .
0070, bits 6:0 7 bits
0071 1 byte
0078
0080 16 bytes
OOAO
Description
DMA 1
Interrupt C&troller 1 .
Timer 1 "'
Timer 2
Keyboard Controller Byte
Reset IRQ
NMI, speaker control
K e y b o a r d C o n t r o l l e r , _'
CMD/STAT Byte
Enable NMI
Address
Real Time Clock,
Data
Reserved Brd. Config....
Resewed Brd. Config.
DMA Page Registers
Interrupt Controller 2
continued (*
Table 20.
Address
0083 2 bytes
. . . . % : , _. . . . , , , . _ I . ,
OOCO - OODE
31 bytes
,
0170 - 0177 8 bytes
0200 0207
8 bytes
0240
0 2 7 8 - 027F
0296
02EF
0300 0301 2 bytes
0330 - 0331 2 bytes '.
2 bytes
0334 - 0335
0376
1 byte
Description
APM Control
,
DMA 2
,
Reset Numeric Error
Secondary IDE Channel
P r i m a r y IDE'Channel -'
Game Port
Parallel Port 2
Hardware 'monitor '
Hardware monitor'
Serial Port2
MPU-401 (MIDI)
MPU-401 (MIDI)
MPU-401 (MIDI)
M'PU-401 (MIDI)
continued (*