Справочник Пользователя для Intel SE7520JR2
Functional Architecture
Intel® Server Board SE7520JR2
Revision 1.0
C78844-002
76
3.5.2 I/O
Map
The baseboard I/O addresses are mapped to the processor bus or through designated bridges
in a multi-bridge system. Other PCI devices, including the ICH5-R, have built-in features that
support PC-compatible I/O devices and functions, which are mapped to specific addresses in
I/O space. On SE7520JR2, the ICH5-R provides the bridge to ISA functions.
in a multi-bridge system. Other PCI devices, including the ICH5-R, have built-in features that
support PC-compatible I/O devices and functions, which are mapped to specific addresses in
I/O space. On SE7520JR2, the ICH5-R provides the bridge to ISA functions.
The I/O map in the following table shows the location in I/O space of all direct I/O-accessible
registers. PCI configuration space registers for each device control mapping in I/O and memory
spaces, and other features that may affect the global I/O map.
registers. PCI configuration space registers for each device control mapping in I/O and memory
spaces, and other features that may affect the global I/O map.
Table 16: I/O Map
Address (es)
Resource
Notes
0000h – 000Fh
DMA Controller 1
0010h – 001Fh
DMA Controller 2
Aliased from 0000h – 000Fh
0020h – 0021h
Interrupt Controller 1
0022h – 0023h
0024h – 0025h
Interrupt Controller 1
Aliased from 0020 – 0021h
0026h – 0027h
0028h – 0029h
Interrupt Controller 1
Aliased from 0020h – 0021h
002Ah – 002Bh
002Ch – 002Dh
Interrupt Controller 1
Aliased from 0020h – 0021h
002Eh – 002Fh
Super I/O (SIO) index and Data ports
0030h – 0031h
Interrupt Controller 1
Aliased from 0020h – 0021h
0032h – 0033h
0034h – 0035h
Interrupt Controller 1
Aliased from 0020h – 0021h
0036h – 0037h
0038h – 0039h
Interrupt Controller 1
Aliased from 0020h – 0021h
003Ah – 003Bh
003Ch – 003Dh
Interrupt Controller 1
Aliased from 0020h – 0021h
003Eh – 003Fh
0040h – 0043h
Programmable Timers
0044h – 004Fh
0050h – 0053F
Programmable Timers
0054h – 005Fh
0060h, 0064h
Keyboard Controller
Keyboard chip select from 87417
0061h
NMI Status & Control Register
0063h
NMI Status & Control Register
Aliased
0065h
NMI Status & Control Register
Aliased
0067h
NMI Status & Control Register
Aliased
0070h
NMI Mask (bit 7) & RTC address (bits 6::0)
0072h
NMI Mask (bit 7) & RTC address (bits 6::0)
Aliased from 0070h
0074h
NMI Mask (bit 7) & RTC address (bits 6::0)
Aliased from 0070h
0076h
NMI Mask (bit 7) & RTC address (bits 6::0)
Aliased from 0070h