MONOLITHIC SYSTEMS, INC. (COLORADO MSI)
MICROFRAME 386S6
|
Processor |
80386SX (exact location unidentified) |
|
Processor Speed |
16/20MHz |
|
Chip Set |
C & T |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
8MB |
|
Maximum Video Memory |
None |
|
Cache |
None |
|
BIOS |
AMI |
|
Dimensions |
330mm x 215mm |
|
I/O Options |
Floppy drive interface, IDE interface, parallel port, PS/2 mouse interface, serial ports (2) |
|
NPU Options |
80387SX (exact location unidentified) |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J1 |
Ready LED |
J16 |
|
IDE interface LED |
J3 |
Serial port 1 |
J18 |
|
Front panel connector |
J6 |
Serial port 2 |
J20 |
|
PS/2 mouse interface |
J8 |
Speaker |
J22 |
|
Auxiliary keyboard connector |
J9 |
Reset switch |
J23 |
|
IDE interface |
J10 |
IDE access LED |
J24 |
|
Floppy drive interface |
J11 |
Power LED & keylock |
J40 |
|
Parallel port |
J15 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
|
CMOS memory normal operation |
J2 |
Open |
|
CMOS memory clear |
J2 |
Closed | |
|
|
Factory configured - do not alter (oscillators enabled) |
J7 |
Open |
|
Factory configured - do not alter (oscillators disabled) |
J7 |
Closed | |
|
PS/2 mouse CLK enabled |
J12 |
Pins 2 & 3 closed | |
|
PS/2 mouse CLK disabled |
J12 |
Pins 1 & 2 closed | |
|
PS/2 mouse data enabled |
J13 |
Pins 1 & 2 closed | |
|
PS/2 mouse data disabled |
J13 |
Pins 2 & 3 closed | |
|
PS/2 mouse IRQ12 enabled |
J17 |
Closed | |
|
PS/2 mouse IRQ12 disabled |
J17 |
Open | |
|
|
Pipeline mode enabled |
J19 |
Closed |
|
Pipeline mode disabled |
J19 |
Open | |
|
|
Monitor type select EGA/VGA |
J21 |
Pins 2 & 3 closed |
|
Monitor type select monochrome |
J21 |
Pins 1 & 2 closed | |
|
|
Factory configured - do not alter |
J25 |
Unidentified |
|
|
Factory configured - do not alter (80387SX ready signal) |
J27 |
Closed |
|
|
Factory configured - do not alter |
J53 |
Unidentified |
|
|
IDE interface enabled |
S1/1 |
On |
|
IDE interface disabled |
S1/1 |
Off | |
|
|
IDE IOCHRDY signal from pin 21 (Seagate/CDC/Imprimis/Miniscribe) |
S1/2 |
On |
|
|
IDE IOCHRDY signal from pin 27 (Quantum) |
S1/3 |
On |
|
|
Factory configured - do not alter |
S1/4 |
Not used |
|
|
Floppy drive interface enabled |
S1/5 |
On |
|
Floppy drive interface disabled |
S1/5 |
Off | |
|
|
Floppy drive change signal enabled |
S1/6 |
On |
|
Floppy drive change signal disabled |
S1/6 |
Off | |
|
|
Floppy drive speed select single speed |
S1/7 |
Off |
|
Floppy drive speed select two speed |
S1/7 |
On | |
|
|
Floppy drive pre-compensation value select 125ns |
S1/8 |
Off |
|
Floppy drive pre-compensation value select 187ns |
S1/8 |
On | |
|
|
Factory configured - do not alter |
S4/4 |
Not used |
|
Note: If using a Conner or Western Digital drive, ignore settings for S1/2 & S1/3. | |||
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
512KB |
(2) 256K x 9 |
None |
None |
None |
|
1MB |
(2) 256K x 9 |
(2) 256K x 9 |
None |
None |
|
2MB |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 256K x 9 |
|
2MB |
(2) 1M x 9 |
None |
None |
None |
|
3MB |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 1M x 9 |
None |
|
4MB |
(2) 1M x 9 |
(2) 1M x 9 |
None |
None |
|
5MB |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
|
6MB |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
None |
|
8MB |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
|
DMA CHANNEL SELECTION | ||
|
Channel |
J26 | |
|
High |
Pins 1 & 2 closed | |
|
Low |
Pins 2 & 3 closed | |
|
PARALLEL PORT LPT/IRQ SELECTION | ||||||
|
LPT/IRQ |
S4/1 LPT1 |
S4/2 LPT2 |
S4/3 LPT3 |
S4/5 IRQ5 |
S4/6 IRQ7 | |
|
Disabled |
Off |
Off |
Off |
Off |
Off | |
|
LPT1/IRQ7 |
On |
Off |
Off |
Off |
On | |
|
LPT2/IRQ5 |
Off |
On |
Off |
On |
Off | |
|
LPT/IRQ7 |
Off |
Off |
On |
Off |
On | |
|
SERIAL PORT 1 COM/IRQ SELECTION | |||||||
|
COM/IRQ |
S3/1 COM1 |
S3/2 COM2 |
S3/3 COM3 |
S3/4 COM4 |
S3/5 IRQ3 |
S3/6 IRQ4 | |
|
Disabled |
Off |
Off |
Off |
Off |
Off |
Off | |
|
COM1/IRQ4 |
On |
Off |
Off |
Off |
Off |
On | |
|
COM2/IRQ3 |
Off |
On |
Off |
Off |
On |
Off | |
|
COM3/IRQ4 |
Off |
Off |
On |
Off |
Off |
On | |
|
COM4/IRQ3 |
Off |
Off |
Off |
On |
On |
Off | |
|
SERIAL PORT 2 COM/IRQ SELECTION | |||||||
|
COM/IRQ |
S2/1 COM1 |
S2/2 COM2 |
S2/3 COM3 |
S2/4 COM4 |
S2/5 IRQ3 |
S2/6 IRQ4 | |
|
Disabled |
Off |
Off |
Off |
Off |
Off |
Off | |
|
COM1/IRQ4 |
On |
Off |
Off |
Off |
Off |
On | |
|
COM2/IRQ3 |
Off |
On |
Off |
Off |
On |
Off | |
|
COM3/IRQ4 |
Off |
Off |
On |
Off |
Off |
On | |
|
COM4/IRQ3 |
Off |
Off |
Off |
On |
On |
Off | |