ML-757 Hard Disk/Floppy Controller Settings and Configuration
CHAINTECH COMPUTER COMPANY, LTD.
ML-757
Data bus: | 32-bit VL-bus |
Size: | Three-quarter length, half-height card |
Hard drive supported: | Four IDE(AT) drives |
Floppy drives supported: | Two 360KB, 720KB, 1.2MB, or 1.44MB drives |
CONNECTIONS | |
Function | Location |
40-pin primary IDE(AT) connector | J1 |
40-pin secondary IDE(AT) connector | J2 |
34-pin cable connector - floppy drive | J3 |
10-pin serial port 1 internal, 9-pin serial port 1 - external | J4 |
10-pin serial port 2 - internal | J5 |
16-pin game port | J6 |
25-pin parallel port - external | J7 |
4-pin connector - drive active LED | J8 |
PARALLEL PORT ADDRESS SELECTION | |||
LPT | JP13 | JP14 | |
| » | LPT1 (378h) | pins 1 & 2 closed | pins 1 & 2 closed |
LPT2 (278h) | pins 2 & 3 closed | pins 2 & 3 closed | |
LPT3 (3BCh) | pins 2 & 3 closed | pins 1 & 2 closed | |
Disabled | pins 1 & 2 closed | pins 2 & 3 closed | |
USER CONFIGURABLE SETTINGS | |||
Function | Location | Setting | |
| » | IDE(AT) interface enabled | JP1/pins 1 & 2 | closed |
| IDE(AT) interface disabled | JP1/pins 2 & 3 | closed | |
| » | Primary & secondary IDE enabled | JP2/pins 1 & 2 | closed |
| Primary IDE enabled, secondary disabled | JP2/pins 2 & 3 | closed | |
| » | CPU clock is 40 or 50MHz | JP3/pins 1 & 2 | closed |
| CPU clock <=33MHz | JP3/pins 2 & 3 | closed | |
| » | Factory configured - do not alter | JP4 | N/A |
| » | Factory configured - do not alter | JP5 | N/A |
| » | Floppy drive order is normal (A:, B:) | JP6/pins 1 & 2 | closed |
| Floppy drive order is reversed (B:, A:) | JP6/pins 2 & 3 | closed | |
| » | Floppy controller primary address is 3F0h | JP7/pins 1 & 2 | closed |
| Floppy controller secondary address is 370h | JP7/pins 2 & 3 | closed | |
| » | Floppy drive interface enabled | JP8/pins 1 & 2 | closed |
| Floppy drive interface disabled | JP8/pins 2 & 3 | closed | |
| » | Parallel port is unidirectional | JP15 | closed |
| Parallel port is bi-directional | JP15 | open | |
| » | Parallel port IRQ 7 select | JP16/ 1 | closed |
| Parallel port IRQ 5 select | JP16/ 2 | closed | |
| » | Game port enabled | JP17 | closed |
| Game port disabled | JP17 | open | |
SERIAL PORT 1 ADDRESS SELECTION | |||
COM | JP9 | JP10 | |
| » | COM1 (3F8h) | pins 1 & 2 closed | pins 1 & 2 closed |
COM3 (3E8h) | pins 2 & 3 closed | pins 2 & 3 closed | |
Disabled | pins 2 & 3 closed | pins 1 & 2 closed | |
SERIAL PORT 2 ADDRESS SELECTION | |||
COM | JP11 | JP12 | |
| » | COM2 (2F8h) | pins 1 & 2 closed | pins 1 & 2 closed |
COM4 (2E8h) | pins 2 & 3 closed | pins 2 & 3 closed | |
Disabled | pins 2 & 3 closed | pins 1 & 2 closed | |
MISCELLANEOUS TECHNICAL NOTES |
Pin 1 in jumper blocks is unidentified. |
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