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# MONOLITHIC SYSTEMS, INC. (COLORADO MSI)
MicroFrame 386S
Processor 80386SX
Processor speed 16/20MHz
Chip Set C & T
Max. Onboard 4MB
DRAM
Cache None
BIOS AMI/Quadtel
Dimensions 330mm x 218mm
I/O Options Parallel port, serial ports (2), floppy drive
interface, IDE interface, bus mouse port
NPU Options 80387SX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| External battery | J1 | Auxiliary | J8 |
| | | Keyboard | |
|-------------------+----------+------------------+----------|
| CMOS Reset switch | J2 | IDE interface | J9 |
|-------------------+----------+------------------+----------|
| Floppy drive LED | J3 | Floppy drive | J11 |
| | | interface | |
|-------------------+----------+------------------+----------|
| No connection | J6 pin 1 | CPU ready LED | J12 |
| (key) | | | |
|-------------------+----------+------------------+----------|
| -Ready | J6 pin 2 | Reset switch | J13 |
|-------------------+----------+------------------+----------|
| -Keyboard | J6 pin 3 | Parallel port | J14 |
| disabled | | | |
|-------------------+----------+------------------+----------|
| No connection | J6 pin 4 | Serial port | J19 |
| | | (COM1) | |
|-------------------+----------+------------------+----------|
| No connection | J6 pin 5 | Serial port | J20 |
| | | (COM2) | |
|-------------------+----------+------------------+----------|
| -Disk | J6 pin 6 | Digital video | J22 |
|-------------------+----------+------------------+----------|
| -Reset | J6 pin 7 | Analog video | J23 |
|-------------------+----------+------------------+----------|
| -GND | J6 pin 8 | Speaker | J24 |
|-------------------+----------+------------------+----------|
| -Speaker | J6 pin 9 | IDE interface | J28 |
| | | LED | |
|-------------------+----------+------------------+----------|
| +5VDC | J6 pin | Power LED & | J52 |
| | 10 | keylock | |
|-------------------+----------+------------------+----------|
| Bus mouse port | J7 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|---------------------------------------+--------+-----------|
| » | IDE Interface - pin 34 is not | J15 | Open |
| | grounded | | |
|---+-----------------------------------+--------+-----------|
| | IDE Interface - pin 34 is | J15 | Closed |
| | grounded | | |
|---+-----------------------------------+--------+-----------|
| » | Factory configured - do not alter | J16 | pins 1 & |
| | | | 2 closed |
|---+-----------------------------------+--------+-----------|
| » | Parallel port (J14) select | J21 | Closed |
| | LPT1/IRQ7 | | |
|---+-----------------------------------+--------+-----------|
| | Parallel port (J14) disabled | J21 | Open |
|---+-----------------------------------+--------+-----------|
| » | Serial port (J19) select | J25 | Closed |
| | COM1/IRQ4 | | |
|---+-----------------------------------+--------+-----------|
| | Serial port (J19) disabled | J25 | Open |
|---+-----------------------------------+--------+-----------|
| » | DMA signal select default-high | J26 | pins 1 & |
| | | | 2 closed |
|---+-----------------------------------+--------+-----------|
| | DMA signal select default-low | J26 | pins 2 & |
| | | | 3 closed |
|---+-----------------------------------+--------+-----------|
| » | Serial port (J20) select | J30 | Closed |
| | COM2/IRQ3 | | |
|---+-----------------------------------+--------+-----------|
| | Serial port (J20) disabled | J30 | Open |
|---+-----------------------------------+--------+-----------|
| » | Floppy precompensation select | J31 | Open |
| | 125ns | | |
|---+-----------------------------------+--------+-----------|
| | Floppy precompensation select | J31 | Closed |
| | 187ns | | |
|---+-----------------------------------+--------+-----------|
| » | Floppy drive speed select single | J32 | Open |
| | speed | | |
|---+-----------------------------------+--------+-----------|
| | Floppy drive speed select dual | J32 | Closed |
| | speed | | |
|---+-----------------------------------+--------+-----------|
| » | Floppy disk change signal enabled | J33 | Closed |
|---+-----------------------------------+--------+-----------|
| | Floppy disk change signal | J33 | Open |
| | disabled | | |
|---+-----------------------------------+--------+-----------|
| » | On-board video port enabled | J34 | Closed |
|---+-----------------------------------+--------+-----------|
| | On-board video port disabled | J34 | Open |
|---+-----------------------------------+--------+-----------|
| » | Pipeline mode enabled | J35 | Closed |
|---+-----------------------------------+--------+-----------|
| | Pipeline mode disabled | J35 | Open |
|---+-----------------------------------+--------+-----------|
| » | Factory configured - do not alter | J36 | Open |
|---+-----------------------------------+--------+-----------|
| » | Factory configured - do not alter | J37 | pins 1 & |
| | | | 2 closed |
|---+-----------------------------------+--------+-----------|
| » | On-board video mode select 16-bit | J38 | Open |
|---+-----------------------------------+--------+-----------|
| | On-board video mode select 8-bit | J38 | Closed |
|---+-----------------------------------+--------+-----------|
| » | NPU disabled | J39 | Open |
|---+-----------------------------------+--------+-----------|
| | NPU enabled | J39 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS (CON’T) |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Factory configured - do not | J42 | pins 1 & 2 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Bus mouse port (J7) interface | J45 | Closed |
| | select IRQ12 | | |
|---+----------------------------------+--------+------------|
| | Bus mouse port (J7) interface | J45 | Open |
| | select none | | |
|---+----------------------------------+--------+------------|
| | Keyboard controller type select | J48 | pins 1 & 2 |
| | without mouse support | | closed |
|---+----------------------------------+--------+------------|
| | Keyboard controller type select | J48 | pins 2 & 3 |
| | with mouse support | | closed |
|---+----------------------------------+--------+------------|
| » | Monitor type select color | J51 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | J51 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J53 | Open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | IRQ5 enabled (Rev. B and later) | J54 | Closed |
|---+----------------------------------+--------+------------|
| | IRQ5 disabled (Rev. B and later) | J54 | Open |
|---+----------------------------------+--------+------------|
| » | On-board mouse support enabled | J55 | pins 1 & 2 |
| | (Rev. B and later) | | closed |
|---+----------------------------------+--------+------------|
| | On-board mouse support disabled | J55 | pins 1 & 2 |
| | (Rev. B and later) | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|---------------+----------------------+---------------------|
| 512KB | (2) 256K x 9 | NONE |
|---------------+----------------------+---------------------|
| 1MB | (2) 256K x 9 | (2) 256K x 9 |
|---------------+----------------------+---------------------|
| 2MB | (2) 1M x 9 | NONE |
|---------------+----------------------+---------------------|
| 4MB | (2) 1M x 9 | (2) 1M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIDEO DISPLAY MODE JUMPERS |
|------------------------------------------------------------|
| BIOS | BIOS | JP27 | | |
|Primary |Secondary | pins | | |
|--------+----------+------+------+--------------------------|
|Adapter | Adapter |1 & 2 |3 & 4 |5 & 6 |7 & 8 |9 & 10|JP29 |
|--------+----------+------+------+------+------+------+-----|
|MDA |*EGA w/CD |Closed|Closed|Closed|Closed| Open |1 & 2|
| |40x25 | | | | | | |
|--------+----------+------+------+------+------+------+-----|
|MDA |*EGA w/CD | Open |Closed|Closed|Closed| Open |1 & 2|
| |80x25 | | | | | | |
|--------+----------+------+------+------+------+------+-----|
|MDA |*EGA w/ED |Closed| Open |Closed|Closed| Open |1 & 2|
| |200 line | | | | | | |
|--------+----------+------+------+------+------+------+-----|
|MDA |*EGA w/ED | Open | Open |Closed|Closed| Open |1 & 2|
| |350 line | | | | | | |
|--------+----------+------+------+------+------+------+-----|
|CGA |*EGA w/MD |Closed|Closed| Open |Closed| Open |2 & 3|
|40x25 | | | | | | | |
|--------+----------+------+------+------+------+------+-----|
|CGA |*EGA w/MD | Open |Closed| Open |Closed| Open |2 & 3|
|80x25 | | | | | | | |
|--------+----------+------+------+------+------+------+-----|
|*EGA |MDA or |Closed| Open | Open |Closed| Open |1 & 2|
|w/CD |none | | | | | | |
|40x25 | | | | | | | |
|--------+----------+------+------+------+------+------+-----|
|*EGA |MDA or | Open | Open | Open |Closed| Open |1 & 2|
|w/CD |none | | | | | | |
|80x25 | | | | | | | |
|--------+----------+------+------+------+------+------+-----|
|*EGA |MDA or |Closed|Closed|Closed| Open | Open |1 & 2|
|w/ED200 |none | | | | | | |
|line | | | | | | | |
|--------+----------+------+------+------+------+------+-----|
|*EGA |MDA or | Open |Closed|Closed| Open | Open |1 & 2|
|w/ED350 |none | | | | | | |
|line | | | | | | | |
|--------+----------+------+------+------+------+------+-----|
|*EGA |CGA 40x25 |Closed| Open |Closed| Open | Open |2 & 3|
|w/MD |or none | | | | | | |
|--------+----------+------+------+------+------+------+-----|
|*EGA |CGA 80x25 | Open | Open |Closed| Open | Open |2 & 3|
|w/MD |or none | | | | | | |
|--------+----------+------+------+------+------+------+-----|
|All VGA | N/A | N/A | N/A | N/A | N/A |Closed| N/A |
|Modes | | | | | | | |
|------------------------------------------------------------|
|Note:Settings marked with an asterisk (*) indicate |
|configuration of the onboard video adapter, other |
|configurations require an optional video card. Pins |
|designated should be in the closed position. |
| |
|CD = Color Display (CGA) |
| |
|ED = Enhanced color display (EGA) |
| |
|MD = Monochrome Display |
+------------------------------------------------------------+
+------------------------------------------------------------+
| IOCHRDY SIGNAL CONFIGURATION |
|------------------------------------------------------------|
| Drive | J17 | J18 |
|------------------------------------------+--------+--------|
| Pin 21 | Closed | Open |
| CDC/Imprimis/Miniscribe/Maxtor/Seagate | | |
|------------------------------------------+--------+--------|
| pin 27 Quantum | Open | Closed |
+------------------------------------------------------------+