I/O Map; Table 22. I/O Map - Lenovo Aptiva Product Manual

Aptiva S Series 1G Product Guide

I/O Map

Table 22. I/O Map
Address (hex)
0000 - 000F
0020 - 0021
0040 - 0043
0060
0061
0064
0070 - 0071
0072 - 0073
0080 - 0090
0094 - 009F
00A0 - 00A1
00B2 - 00B3
00C0 - 00DE
00F0 - 00FF
0170 - 0177
01F0 - 01F7
One of these ranges:
0200 - 0207
0208 - 020F
0210 - 0217
0218 - 021F
0220 - 022F
0240 - 024F
0240 - 024F
0278 - 027F*
0228 - 022F*
02E8 - 02EF*
02F8 - 02FF*
One of these ranges:
0320 - 0327
0330 - 0337
0340 - 0347
0350 - 0357
0376
64
Size Description
16 bytes DMA controller
2 bytes Programmable Interrupt Control (PIC)
4 bytes System timer
1 byte Keyboard controller byte—reset IRQ
1 byte System speaker
1 byte Keyboard controller, CMD/STAT byte
2 bytes System CMOS/Real-time clock
2 bytes CMOS bank 1
DMA controller
DMA controller
2 bytes PIC
2 bytes APM control
31 bytes DMA
Numeric data processor
8 bytes Secondary IDE channel
8 bytes Primary IDE channel
Can vary from 1 byte Audio/game port
to 8 bytes
16 bytes Audio (Sound Blaster Pro
16 bytes Audio (Sound Blaster Pro-compatible)
16 bytes Audio (Sound Blaster-compatible)
8 bytes LPT2
8 bytes LPT3
8 bytes COM4/Video (8514A)
8 bytes COM2
8 bytes MPU-401 (MIDI)
1 byte Secondary IDE channel command port
†
-compatible)
continued