1-10 Technical Information
I/O Addressing
The processor communicates with I/O devices by I/O mapping. The hexadecimal (hex)
addresses of I/O devices are listed in Table 1-4. (In Plug and Play systems, these addresses
are typical but may vary by configuration.)
Table 1-4 I/O Address Map
Address (Hex)
I/O Device Name
0000-000F
DMA controller
0020-0021
Programmable interrupt controller
0040-0043
System timer 1
0060
Standard 101/102 or Microsoft
®
Natural
Keyboard
0061
System speaker
0064
Standard 101/102 or Microsoft
®
Natural
Keyboard
0071
System CMOS/real time clock
0078-007F
System board resources
0080
System board resources
0081-008F
DMA controller
00A0-00A1
Programmable interrupt controller
00C0-00DF
DMA controller
00F0-00FF
Numeric data processor
01F0-01F7
Intel 82371AB PCI Bus Master IDE controller
01F0-01F7
Primary IDE controller (dual FIFO)
0220-022F
YAMAHA OPL3-SAx Sound System
0274-0277
I/O read data port for ISA Plug and Play
enumerator
0290-0297
System board resources
0278-027F
Parallel port 2
02E8-02EF
COM4
02F8-02FF
COM2
0330-0331
YAMAHA OPL3-SAx Sound System
0370-0371
YAMAHA OPL3-SAx Sound System
0378-037F
Parallel port (LPT1)
0388-038F
YAMAHA OPL3-SAx Sound System
003B0-03BB
S3 Virge/DX/GX PCI graphics
Содержание POWERMATE ENTERPRISE NETPC - SERVICE
Страница 6: ...Abbreviations xvii ...