UNIDENTIFIED
ML-863
| |
Data bus: |
32-bit VL-bus |
Size: |
Three-quarter length, half-height card |
Hard drive supported: |
Two IDE(AT) drives |
Floppy drives supported: |
Two 360KB, 720KB, 1.2MB, or 1.44MB drives |
CONNECTIONS | |
Function |
Location |
25-pin parallel port - external |
CN1 |
10-pin serial port 2 - internal |
CN2 |
9-pin serial port 1 - external, 10-pin serial port 1 - internal |
CN3 |
16-pin game port |
CN4 |
34-pin cable connector - floppy drive |
CN5 |
40-pin primary IDE(AT) connector |
CN6 |
4-pin connector - drive active LED |
CN7 |
USER CONFIGURABLE SETTINGS | |||
Function |
Location |
Setting | |
» |
IOCHRDY signal disabled |
JP1 |
pins 1 & 2 closed |
IOCHRDY signal enabled |
JP1 |
pins 2 & 3 closed | |
» |
CPU speed is 40,50 MHz |
JP2 |
pins 1 & 2 closed |
CPU speed is <=33MHz |
JP2 |
pins 2 & 3 closed | |
» |
IDE(AT) interface enabled |
JP3 |
pins 1 & 2 closed |
IDE(AT) interface disabled |
JP3 |
pins 2 & 3 closed | |
» |
Floppy drive interface enabled |
JP4 |
pins 1 & 2 closed |
Floppy drive interface disabled |
JP4 |
pins 2 & 3 closed |
USER CONFIGURABLE SETTINGS (CONTINUED) | |||
Function |
Location |
Setting | |
» |
Game port enabled |
JP5 |
pins 1 & 2 closed |
Game port disabled |
JP5 |
pins 2 & 3 closed | |
» |
Floppy drive select primary |
JP7 |
pins 1 & 2 closed |
Floppy drive select secondary |
JP7 |
pins 2 & 3 closed |
PARALLEL PORT ADDRESS SELECTION | |||
LPT |
JP6 |
JP12 | |
» |
LPT2(378h) |
pins 1 & 2 closed |
pins 1 & 2 closed |
LPT3 (278h) |
pins 2 & 3 closed |
pins 1 & 2 closed | |
Disabled |
N/A |
pins 2 & 3 closed |
SERIAL PORT 1 ADDRESS SELECTION | |||
COM |
JP10 |
JP11 | |
» |
COM1 (3F8h) |
pins 1 & 2 closed |
pins 1 & 2 closed |
COM3 (3E8h) |
pins 2 & 3 closed |
pins 1 & 2 closed | |
Disabled |
N/A |
pins 2 & 3 closed |
SERIAL PORT 2 ADDRESS SELECTION | |||
COM |
JP8 |
JP9 | |
» |
COM2 (2F8h) |
pins 1 & 2 closed |
pins 1 & 2 closed |
COM4 (2E8h) |
pins 2 & 3 closed |
pins 1 & 2 closed | |
Disabled |
N/A |
pins 2 & 3 closed |
IDE HARD DISK DRIVE SPEED SELECTION | |||
Device Speed |
JP13 |
JP14 | |
» |
Low - 600ns |
pins 1 & 2 closed |
pins 1 & 2 closed |
Normal - 500ns |
pins 1 & 2 closed |
pins 2 & 3 closed | |
Fast speed - 383ns |
pins 2 & 3 closed |
pins 1 & 2 closed | |
Turbo speed - 240ns |
pins 2 & 3 closed |
pins 2 & 3 closed |
MISCELLANEOUS TECHNICAL NOTES |
The location of pin 1 is unidentified on jumpers JP1-JP12. |