Chapter 3
Hardware
24
Reference Manual
CoreModule 920
I/O Address Map
shows the I/O address map. These are DOS-level addresses. The OS typically hides these physical
addresses by way of memory management.
Table 3-3. I/O Address Map
Address (hex)
Subsystem
0000-00F
Primary DMA Controller
0020-0021
Master Interrupt Controller
0040-0043
Programmable Interrupt Timer (Clock/Timer)
0061
NMI, Speaker control
0063
NMI Controller
0065
NMI Controller
0067
NMI Controller
0070-007F
CMOS RAM, NMI Mask Reg, RT Clock
0080
System reserved
0081-0083
DMA Page Registers
0084-0086
System reserved
0087
DMA Page Register
0088
System reserved
0089-008B
DMA Page Registers
008C-008E
System reserved
008F
DMA Page Register
0090-0091
System reserved
0092
Fast A20 gate and CPU reset
0093-009F
System reserved
00A0-00A1
Slave Interrupt Controller
00A2-00BF
System reserved
00C0-00DF
Slave DMA Controller #2
00E0-00EF
System reserved
00F0-00FF
Math Coprocessor
01F0-01F7
SATA Controller
02F8-02FF
Serial Port 2 (COM2)
03B0-03BB
Video (monochrome)
03C0-03DF
Video (VGA)
03F8-03FF
Serial Port 1 (COM1)
0400-041F
SMBus Configuration Ports
0500-053F
PCH GPIO Configuration Ports
0800-087F
PCH Power Management Ports
0CF8-0CFF
PCI bus Configuration Address and Data
Содержание CoreModule 920
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