UNIVERSAL AT/XT CONTROLLER Hard Disk/Floppy Controller Settings and Configuration
CMS ENHANCEMENTS, INC.
UNIVERSAL AT/XT CONTROLLER
Data bus: | 16-bit ISA |
Size: | Half length, full-height card |
Hard drive supported: | Two IDE(AT) interface drives |
Floppy drives supported: | None |
CONNECTIONS | |
Function | Location |
40-pin IDE(AT) interface connector | J3 |
External power connector | J4 |
Replaceable controller chip | U2 |
Note: Chip U2 can be replaced with a U2 A/X-30 chip for compatibility with some PS-2 model 30 systems. | |
USER CONFIGURABLE SETTING | |||
Function | Location | Setting | |
| » | Factory configured - do not alter | SW1/1 | N/A |
| » | Factory configured - do not alter | SW1/2 | N/A |
| » | Controller enabled | SW1/3 | on |
Controller disabled | SW1/3 | off | |
| » | CMS drive C select | SW1/4 | on |
CMS drive D select | SW1/4 | off | |
| » | I/O address select 1F0 - 1F7h | SW1/7 | on |
I/O address select 170 - 177h | SW1/7 | off | |
BASE MEMORY ADDRESS SELECT | |||
Address | SW1/5 | SW1/6 | |
| » | C8000h | off | off |
D8000h | off | on | |
CC000h | on | off | |
DC000h | on | on | |
XT COMPATIBLE INTERRUPT CONFIGURATION | ||
IRQ | SW1/8 | |
| » | IRQ5 | on |
IRQ2 | off | |
AT COMPATIBLE INTERRUPT CONFIGURATION | ||
IRQ | SW1/8 | |
| » | IRQ14 | on |
IRQ11 | off | |
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