UNIDENTIFIED
MP611 VL/787VL
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Data bus: |
32-bit VL-bus |
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Size: |
Unidentified |
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Hard drive supported: |
Two IDE(AT) drives |
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Floppy drives supported: |
Two 360KB, 720KB, 1.2MB, or 1.44MB drives |
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  DIAGRAM NOT AVAILABLE DOC # C0889 |
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CONNECTIONS | |
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Function |
Location |
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40-pin IDE(AT) connector |
unidentified |
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34-pin cable connector - floppy drive |
unidentified |
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Serial port 1 |
unidentified |
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Serial port 2 l |
unidentified |
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25-pin parallel port - external |
unidentified |
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Drive active LED |
JP4 |
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USER CONFIGURABLE SETTINGS | |||
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Function |
Location |
Setting | |
| » |
IDE(AT) interface enabled |
JP5/Pins 1 & 2 |
closed |
|
IDE(AT) interface disabled |
JP5/pins 2 & 3 |
closed | |
| » |
Factory configured - do not alter |
JP6/pins 1 & 2 |
closed |
|
IDE ID# is bit1 |
JP7/pins 1 & 2 |
closed | |
|
IDE ID# is bit0 |
JP8/pins 2 & 3 |
closed | |
| » |
RDYRTN# signal source is LRDY# |
JP9/pins 2 & 3 |
closed |
|
RDYRTN# signal source is CPURDY# |
JP9/pins 1 & 2 |
closed | |
| » |
IDE(AT) IRQ 14 enabled |
JP10 |
closed |
|
IDE(AT) IRQ 14 disabled |
JP10 |
open | |
| » |
Floppy drive interface enabled |
JP17/pins 1 & 2 |
closed |
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Floppy drive interface disabled |
JP17/pins 2 & 3 |
closed | |
| » |
Floppy drive address is 370-377h |
JP18/pins 1 & 2 |
closed |
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Floppy drive address is 3F0-3F7h |
JP18/pins 2 & 3 |
closed | |
| » |
Parallel port is bi-directional |
JP19 |
open |
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Parallel port is uni-directional |
JP19 |
closed | |
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SERIAL PORT 1 ADDRESS SELECTION | ||
|
COM |
JP14 |
JP15 |
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COM1 (3F8h) |
pins 1 & 2 closed |
pins 2 & 3 closed |
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COM3 (3E8h) |
pins 2 & 3 closed |
pins 1 & 2 closed |
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COM4 (2E8h) |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
Disabled |
pins 2 & 3 closed |
pins 2 & 3 closed |
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SERIAL PORT 2 ADDRESS SELECTION | ||
|
COM |
JP11 |
JP16 |
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COM2 (2F8h) |
pins 2 & 3 closed |
pins 1 & 2 closed |
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COM3 (3E8h) |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
COM4 (2E8h) |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
Disabled |
pins 2 & 3 closed |
pins 2 & 3 closed |
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PARALLEL PORT ADDRESS SELECTION | ||
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LPT |
JP12 |
JP13 |
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LPT1 (378h) |
pins 2 & 3 closed |
pins 1 & 2 closed |
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LPT2 (278h) |
pins 1 & 2 closed |
pins 2 & 3 closed |
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LPT3 (3BCh) |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
Disabled |
pins 2 & 3 closed |
pins 2 & 3 closed |
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SERIAL PORT 1 INTERRUPT SELECTION | |||
|
IRQ |
J7/Pins 1 & 9 |
J7/Pins 2 & 10 |
J7/Pins 3 & 11 |
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3 |
open |
closed |
open |
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4 |
closed |
open |
open |
|
5 |
open |
open |
closed |
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SERIAL PORT 2 INTERRUPT SELECTION | |||
|
IRQ |
J7/Pins 4 & 12 |
J7/Pins 5 & 13 |
J7/Pins 6 & 14 |
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3 |
closed |
open |
open |
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4 |
open |
closed |
open |
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5 |
open |
open |
closed |
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PARALLEL PORT INTERRUPT SELECTION | ||
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IRQ |
J7/Pins 7 & 15 |
J7/Pins 8 & 16 |
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7 |
closed |
open |
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5 |
open |
closed |
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MISCELLANEOUS TECHNICAL NOTES |
|
JP1 controls wait-state bit2, JP2 controls wait-state bit 1. Exact setting are unidentified. |