IBM NetVista A21 User Manual page 76

Table 2. I/O address map (continued)
Address range (hex)
0072, bits 6:0
0073
0080
008F
0080 – 008F
0090 – 0091
0092
0093 – 009F
00A0 – 00A1
00A2 – 00BF
00C0 – 00DF
00E0 – 00EF
00F0
00F1 – 016F
0170 – 0177
01F0 – 01F7
0200 – 0207
0220 – 0227
0228 – 0277
0278 – 027F
0280 – 02E7
02E8 – 02EF
02F8 – 02FF
0338 – 033F
0340 – 036F
0370 – 0371
0378 – 037F
0380 – 03B3
03B4 – 03B7
03BA
03BC – 03BE
03C0 – 03CF
03D4 – 03D7
03DA
03D0 – 03DF
03E0 – 03E7
03E8 – 03EF
03F0 – 03F5
03F6
03F7 (Write)
64
User Guide
Size (bytes) Description
6 bits RTC address
1 RTC data
1 POST checkpoint register during POST only
1 Refresh page register
16 DMA page registers
15 General I/O locations, available to PCI bus
1 PS/2 keyboard controller registers
15 General I/O locations
2 Interrupt controller 2
30 APM control
31 DMA 2
16 General I/O locations, available to PCI bus
1 Coprocessor error register
127 General I/O locations, available to PCI bus
8 Secondary IDE channel
8 Primary IDE channel
8 MIDI/joystick port
8 Serial port 3 or 4
80 General I/O locations, available to PCI bus
8 LPT3
102 Available
8 Serial port 3 or 4
8 COM2
8 Serial port 3 or 4
48 Available
2 IDE channel 1 command
8 LPT2
52 Available
4 Video
1 Video
16 LPT1
52 Video
16 Video
1 Video
11 Available
8 Available
8 COM3 or COM4
6 Diskette channel 1
1 Primary IDE channel command port
1 Diskette channel 1 command