Intel® Server Board SE7520AF2 TPS
Functional Architecture
Revision 1.2
77
Intel order number C77866-003
Address (es)
Resource
Notes
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 87427
0061h
NMI Status and Control Register
0063h
NMI Status and Control Register
Aliased
0065h
NMI Status and Control Register
Aliased
0067h
NMI Status and Control Register
Aliased
0070h
NMI Mask (bit 7) and RTC address (bits 6::0)
0072h
NMI Mask (bit 7) and RTC address (bits 6::0)
Aliased from 0070h
0074h
NMI Mask (bit 7) and RTC address (bits 6::0)
Aliased from 0070h
0076h
NMI Mask (bit 7) and RTC address (bits 6::0)
Aliased from 0070h
0071h RTC
Data
0073h
RTC Data
Aliased from 0071h
0075h
RTC Data
Aliased from 0071h
0077h
RTC Data
Aliased from 0071h
0080h – 0081h
BIOS Timer
0080h – 008F
DMA Low Page Register
0090h – 0091h
DMA Low Page Register (aliased)
0092h
System Control Port A (PC-AT control Port) (this port not
aliased in DMA range)
0093h – 009Fh
DMA Low Page Register (aliased)
0094h
Video Display Controller
00A0h – 00A1h
Interrupt Controller 2
00A4h – 00A5h
Interrupt Controller 2 (aliased)
00A8h – 00A9h
Interrupt Controller 2 (aliased)
00ACh – 00ADh
Interrupt Controller 2 (aliased)
00B0h – 00B1h
Interrupt Controller 2 (aliased)
00B4h – 00B5h
Interrupt Controller 2 (aliased)
00B8h – 00B9h
Interrupt Controller 2 (aliased)
00BCh – 00BDh
Interrupt Controller 2 (aliased)