Accessing Configuration Space - Intel SE7520AF2 Technical Product Specification

Functional Architecture
Address (es)
00C0h – 00DFh DMA Controller 2
00F0h Clear NPX error
00F8h – 00FFh X87 Numeric Coprocessor
0102h Video Display Controller
0170h – 0177h Secondary Fixed Disk Controller (IDE)
01F0h – 01F7h Primary Fixed Disk Controller (IDE)
0200h – 0207h Game I/O Port
0220h – 022Fh Serial Port A
0238h – 023Fh Serial Port B
0278h – 027Fh Parallel Port 3
0290h – 0298h NS HW monitor
02E8h – 02EFh Serial Port B
02F8h – 02FFh Serial Port B
0338h – 033Fh Serial Port B
0370h – 0375h Secondary Floppy
0376h Secondary IDE
0377h Secondary IDE/Floppy
0378h – 037Fh Parallel Port 2
03B4h – 03Bah Monochrome Display Port
03BCh – 03BFh Parallel Port 1 (Primary)
03C0h – 03CFh Video Display Controller
03D4h – 03Dah Color Graphics Controller
03E8h – 03Efh Serial Port A
03F0h – 03F5h Floppy Disk Controller
03F6h – 03F7h Primary IDE – Sec Floppy
03F8h – 03FFh Serial Port A (primary)
0400h – 043Fh DMA Controller 1, Extended Mode Registers
0461h Extended NMI / Reset Control
0480h – 048Fh DMA High Page Register
04C0h – 04CFh DMA Controller 2, High Base Register
04D0h – 04D1h Interrupt Controllers 1 and 2 Control Register
04D4h – 04D7h DMA Controller 2, Extended Mode Register
04D8h – 04DFh Reserved
04E0h – 04FFh DMA Channel Stop Registers
051Ch Software NMI (051Ch)
0CF8h PCI CONFIG_ADDRESS Register
0CF9h Intel® Server Board SE7520AF2 Turbo and Reset
Control
0CFCh PCI CONFIG_DATA Register
3.5.3

Accessing Configuration Space

All PCI devices contain PCI configuration space, accessed using mechanism 1 defined in the
PCI Local Bus Specification. If dual processors are used, only the processor designated as the
78
Resource
Intel order number C77866-003
Intel® Server Board SE7520AF2 TPS
Notes
Resets IRQ13
Revision 1.2