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# MONOLITHIC SYSTEMS, INC. (COLORADO MSI)
MSC CONNECT/AT4, MSC CONNECT/AT8
Card Type Serial
Processor 80186
Processor Speed 8MHz
Maximum Onboard Memory 32KB DRAM
I/O Options Serial ports (4 or 8)
Data Bus 16-bit ISA
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|---------------------+---------+-------------------+--------|
| Serial ports via | CN1 | Daisy-chain in | LK3B |
| DB-37 connector | | | |
|---------------------+---------+-------------------+--------|
| Daisy-chain out | LK3A | | |
|------------------------------------------------------------|
| Note:Standard DB-25 serial ports are provided on an |
| external expansion box. The pinouts for CN1 are not |
| the same on the Connect/AT4 and the Connect/AT8, so |
| be sure you have the correct expansion box. |
| |
| When daisy-chaining cards, the master card should be |
| the first card in the chain. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|----------------------------------------+-------+-----------|
| » | Factory configured - do not alter | LK4 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT 1 SELECTION |
|------------------------------------------------------------|
| Setting | LK2/A | LK2/B | LK2/C | LK2/D |
|------------+-------------+-----------+----------+----------|
| | IRQ3 | Pins 1 & 2 | Open | Open | Open |
| | | closed | | | |
|---+--------+-------------+-----------+----------+----------|
| | IRQ4 | Open | Pins 1 & | Open | Open |
| | | | 2 closed | | |
|---+--------+-------------+-----------+----------+----------|
| | IRQ5 | Open | Open | Pins 1 & | Open |
| | | | | 2 closed | |
|---+--------+-------------+-----------+----------+----------|
| | IRQ7 | Open | Open | Open | Pins 1 & |
| | | | | | 2 closed |
|---+--------+-------------+-----------+----------+----------|
| | IRQ10 | Open | Open | Open | Open |
|---+--------+-------------+-----------+----------+----------|
| » | IRQ11 | Open | Open | Open | Open |
|---+--------+-------------+-----------+----------+----------|
| | IRQ12 | Open | Open | Open | Open |
|---+--------+-------------+-----------+----------+----------|
| | IRQ15 | Open | Open | Open | Open |
|---+--------+-------------+-----------+----------+----------|
| | Slave | Open | Open | Open | Open |
| | card | | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT 1 SELECTION (CON’T) |
|------------------------------------------------------------|
| Setting | LK2/E | LK2/F | LK2/G | LK2/H |
|------------+-------------+-----------+----------+----------|
| | IRQ3 | Open | Open | Open | Open |
|---+--------+-------------+-----------+----------+----------|
| | IRQ4 | Open | Open | Open | Open |
|---+--------+-------------+-----------+----------+----------|
| | IRQ5 | Open | Open | Open | Open |
|---+--------+-------------+-----------+----------+----------|
| | IRQ7 | Open | Open | Open | Open |
|---+--------+-------------+-----------+----------+----------|
| | IRQ10 | Pins 1 & 2 | Open | Open | Open |
| | | closed | | | |
|---+--------+-------------+-----------+----------+----------|
| » | IRQ11 | Open | Pins 1 & | Open | Open |
| | | | 2 closed | | |
|---+--------+-------------+-----------+----------+----------|
| | IRQ12 | Open | Open | Pins 1 & | Open |
| | | | | 2 closed | |
|---+--------+-------------+-----------+----------+----------|
| | IRQ15 | Open | Open | Open | Pins 1 & |
| | | | | | 2 closed |
|---+--------+-------------+-----------+----------+----------|
| | Slave | Open | Open | Open | Open |
| | card | | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT 2 SELECTION |
|------------------------------------------------------------|
| Setting | LK2/A | LK2/B | LK2/C | LK2/D |
|------------+-------------+-----------+----------+----------|
| | IRQ3 | Pins 2 & 3 | Open | Open | Open |
| | | closed | | | |
|---+--------+-------------+-----------+----------+----------|
| | IRQ4 | Open | Pins 2 & | Open | Open |
| | | | 3 closed | | |
|---+--------+-------------+-----------+----------+----------|
| | IRQ5 | Open | Open | Pins 2 & | Open |
| | | | | 3 closed | |
|---+--------+-------------+-----------+----------+----------|
| | IRQ7 | Open | Open | Open | Pins 2 & |
| | | | | | 3 closed |
|---+--------+-------------+-----------+----------+----------|
| | IRQ10 | Open | Open | Open | Open |
|---+--------+-------------+-----------+----------+----------|
| | IRQ11 | Open | Open | Open | Open |
|---+--------+-------------+-----------+----------+----------|
| » | IRQ12 | Open | Open | Open | Open |
|---+--------+-------------+-----------+----------+----------|
| | IRQ15 | Open | Open | Open | Open |
|---+--------+-------------+-----------+----------+----------|
| | Slave | Open | Open | Open | Open |
| | card | | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT 2 SELECTION (CON’T) |
|------------------------------------------------------------|
| Setting | LK2/E | LK2/F | LK2/G | LK2/H |
|------------+-------------+-----------+----------+----------|
| | IRQ3 | Open | Open | Open | Open |
|---+--------+-------------+-----------+----------+----------|
| | IRQ4 | Open | Open | Open | Open |
|---+--------+-------------+-----------+----------+----------|
| | IRQ5 | Open | Open | Open | Open |
|---+--------+-------------+-----------+----------+----------|
| | IRQ7 | Open | Open | Open | Open |
|---+--------+-------------+-----------+----------+----------|
| | IRQ10 | Pins 2 & 3 | Open | Open | Open |
| | | closed | | | |
|---+--------+-------------+-----------+----------+----------|
| | IRQ11 | Open | Pins 2 & | Open | Open |
| | | | 3 closed | | |
|---+--------+-------------+-----------+----------+----------|
| » | IRQ12 | Open | Open | Pins 2 & | Open |
| | | | | 3 closed | |
|---+--------+-------------+-----------+----------+----------|
| | IRQ15 | Open | Open | Open | Pins 2 & |
| | | | | | 3 closed |
|---+--------+-------------+-----------+----------+----------|
| | Slave | Open | Open | Open | Open |
| | card | | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CHANNEL SELECTION |
|------------------------------------------------------------|
| Setting | LK1/A | LK1/B | LK1/C | LK1/D |
|----------+-------------+-----------+-----------+-----------|
| | DMA0 | Open | Open | Open | Open |
|---+------+-------------+-----------+-----------+-----------|
| | DMA1 | Open | Open | Open | Open |
|---+------+-------------+-----------+-----------+-----------|
| | DMA2 | Open | Open | Open | Open |
|---+------+-------------+-----------+-----------+-----------|
| | DMA3 | Open | Open | Open | Pins 1 & |
| | | | | | 2, 3 & 4 |
|---+------+-------------+-----------+-----------+-----------|
| » | DMA5 | Open | Open | Pins 1 & | Open |
| | | | | 2, 3 & 4 | |
|---+------+-------------+-----------+-----------+-----------|
| | DMA6 | Open | Pins 1 & | Open | Open |
| | | | 2, 3 & 4 | | |
|---+------+-------------+-----------+-----------+-----------|
| | DMA7 | Pins 1 & 2, | Open | Open | Open |
| | | 3 & 4 | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CHANNEL SELECTION (CON’T) |
|------------------------------------------------------------|
| Setting | LK1/E | LK1/F | LK1/G |
|----------+-----------------+---------------+---------------|
| | DMA0 | Open | Open | Pins 1 & 2, 3 |
| | | | | & 4 |
|---+------+-----------------+---------------+---------------|
| | DMA1 | Open | Pins 1 & 2, 3 | Open |
| | | | & 4 | |
|---+------+-----------------+---------------+---------------|
| | DMA2 | Pins 1 & 2, 3 & | Open | Open |
| | | 4 | | |
|---+------+-----------------+---------------+---------------|
| | DMA3 | Open | Open | Open |
|---+------+-----------------+---------------+---------------|
| » | DMA5 | Open | Open | Open |
|---+------+-----------------+---------------+---------------|
| | DMA6 | Open | Open | Open |
|---+------+-----------------+---------------+---------------|
| | DMA7 | Open | Open | Open |
|------------------------------------------------------------|
| Note:Pins designated are in the closed position. |
+------------------------------------------------------------+