Intel SE7520JR2 3.5.2I/O Map, C78844-002, Table 16: I/O Map, Functional Architecture, Intel® Server Board SE7520JR2

Functional Architecture Intel® Server Board SE7520JR2

3.5.2I/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.

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.

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

76	Revision 1.0
	C78844-002