Silicon Graphics SGI 1100 Maintenance And Upgrade Manual page 146

A: Technical Specifications
130
Table A-17 (continued)
Hex Range Device Function
Bit [4:7]: Host frequency setting
4A1 SMISW, SCISW, SOFTNMI
BIOS/password check control
0CF8 PCI configuration address reg
0CFC PCI configuration data reg
1F0-1F7 Fixed hard disk
278-27F Parallel port 2
2F8-2FF Serial port 2
378-37F Parallel port 1
3B0-3BF Monochrome display
3C0-3CF EGA, VGA, SVGA
3D0-3DF CGA, VGA, SVGA
3F0-3F7 Floppy disk controller
3F7-3FF Serial port 1
000-01F DMA controller-1, 8237
020-027 Interrupt controller-1 8259
I/O Address Map
[0, 0, 1, 1]: 1/5, reset only
[0, 1, 1, 1]: 2/11, 300 MHz
[1, 0, 0, 0]: 1/6, 350 MHz
[0, 0, 0, 1]: 1/4, 400 MHz
[0, 1, 0, 1]: 2/9, 450 MHz
[0, 0, 1, 1]: 1/5, 500 MHz
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