
General Information 1-11
Table 1- 3
System Input / Output Addresses Table
Address range
(hexadecimal)
Function
0040-0047
System timer
0050-0057
System timer
0060-006F
System controller 8742
0070
CMOS RAM address and NMI mask
0078-007B
Real-time clock
0080-009F
DMA page register
00A0-00BF
Interrupt controller 2
00C0-00DF
DMA controller 2
00F0
Clear math coprocessor
00F1
Reset math coprocessor
00F8-00FF
Math coprocessor
0170-0177, 0376
Secondary IDE controller
01F0-01F7, 03F6
Primary IDE controller
0200-0207
Joystick
0220-022F,
0388-038B,
0534-0537
Audio
0330-0333
MIDI
0278-027F
Parallel port 2
02F8-02FF
Serial port
0378-037F
Parallel port 1
03F0-03F7
Diskette drive controller
03F8-03FF
Modem
0CF8
PCI mechanism #1 configuration
address register
0CFC
PCI mechanism #2 configuration
data register
7400-740F
Bus master IDE
Summary of Contents for Aptiva
Page 178: ...Parts Catalog 7 7 Assembly 3 Machine Type 2137 FDD HDD Drive 2 1 3 4 5...
Page 180: ...Parts Catalog 7 9 Assembly 4 Machine Type 2137 CD ROM Modem Card 1 2 3 4 5 6 7...
Page 188: ...Parts Catalog 7 17 Assembly 2 Machine Type 2138 System Unit Interior 2...
Page 190: ...Parts Catalog 7 19 Assembly 3 Machine Type 2138 FDD HDD Drive 2 1 3 4 5...
Page 192: ...Parts Catalog 7 21 Assembly 4 Machine Type 2138 CD ROM DVD Modem Card...