MODULAR CIRCUIT TECHNOLOGY ========================== MCT-VIO+ +------------------------------------------------------------+ |------------------------------------------------------------| | Data bus: | 32-bit VL-bus | |---------------+--------------------------------------------| | Size: | Three-quarter length, half-height card | |---------------+--------------------------------------------| | Hard drive | Four IDE(AT) drives | | supported: | | |---------------+--------------------------------------------| | Floppy drives | Four 360KB, 720KB, 1.2MB, 1.44MB, or | | supported: | 2.88MB drives | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Function | Location | |-------------------------------------------------+----------| | 34-pin control cable connector - primary floppy | CN1 | | drive | | |-------------------------------------------------+----------| | 25-pin parallel port - external | CN2 | |-------------------------------------------------+----------| | 40-pin IDE(AT) Interface connector - primary | CN3 | | drive | | |-------------------------------------------------+----------| | 4-pin connector - primary IDE drive active LED | CN4 | |-------------------------------------------------+----------| | 10-pin serial port 2 - internal | CN5 | |-------------------------------------------------+----------| | 9-pin serial port 1 - external/10-pin serial | CN6 | | port 1 internal | | |-------------------------------------------------+----------| | 40-pin IDE (AT) Interface connector - secondary | CN7 | | drive | | |-------------------------------------------------+----------| | 4-pin connector - secondary drive active LED | CN8 | |-------------------------------------------------+----------| | 34-pin control cable connector - secondary | CN9 | | floppy drive | | |-------------------------------------------------+----------| | 16-pin game port - internal | CN10 | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Location | Setting | |------------------------------------+----------+------------| |>> | IOCHRDY signal disabled | J7 | Open | |---+--------------------------------+----------+------------| | | IOCHRDY signal enabled | J7 | Closed | |---+--------------------------------+----------+------------| |>> | Floppy drive enable | J8 | Pins 2 & 3 | | | | | closed | |---+--------------------------------+----------+------------| | | Floppy drive disable | J8 | Pins 1 & 2 | | | | | closed | |---+--------------------------------+----------+------------| |>> | Floppy drive normal compatible | J16 | Pins 2 & 3 | | | mode enabled | | closed | |---+--------------------------------+----------+------------| | | Floppy drive enhanced mode | J16 | Pins 1 & 2 | | | enabled | | closed | |---+--------------------------------+----------+------------| |>> | IDE(AT) interface enabled | J17 | Pins 2 & 3 | | | | | closed | |---+--------------------------------+----------+------------| | | IDE(AT) interface disabled | J17 | Pins 1 & 2 | | | | | closed | |---+--------------------------------+----------+------------| |>> | Floppy drive I/O address is | J26 | Pins 2 & 3 | | | 3F0h | | closed | |---+--------------------------------+----------+------------| | | Floppy drive I/O address is | J26 | pins 1 & 2 | | | 370h | | closed | |---+--------------------------------+----------+------------| |>> | Game port enable | J37 | Closed | |---+--------------------------------+----------+------------| | | Game port disable | J37 | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | IDE CHANNEL AND ADDRESS CONFIGURATION | |------------------------------------------------------------| | Setting | J18 | J19 | |----------------------------------+------------+------------| | | Primary and secondary | Pins 1 & 2 | Pins 2 & 3 | | | channels enabled | closed | closed | |---+------------------------------+------------+------------| | | Primary channel only enabled | Pins 2 & 3 | Pins 1 & 2 | | | (170h) | closed | closed | |---+------------------------------+------------+------------| |>> | Primary channel only enabled | Pins 2 & 3 | Pins 2 & 3 | | | (1F0h) | closed | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | IDE WAIT STATE FOR VL-BUS CLOCK | |------------------------------------------------------------| | Setting | J20 | J21 | J22 | |---------------------+------------+------------+------------| |>> | General setting | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | | | for all VL bus | closed | closed | closed | | | clocks | | | | |---+-----------------+------------+------------+------------| | | <= 33 MHz VL | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & 2 | | | bus clock | closed | closed | closed | |---+-----------------+------------+------------+------------| | | > 33 MHz VL bus | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 | | | clock | closed | closed | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOPPY CHANNEL CONFIGURATION | |------------------------------------------------------------| | Setting | J4 | J5 | J6 | |---------------------------------+--------+--------+--------| | | Primary and secondary | Closed | Closed | Closed | | | channels enabled | | | | |----+----------------------------+--------+--------+--------| |>> | Primary channel enabled | Open | Open | Open | |------------------------------------------------------------| | Note: The primary and secondary option is invalid with ECP | | mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | PARALLEL PORT CONFIGURATION | |------------------------------------------------------------| | LPT | J9 | J27 | |--------------------+-------------------+-------------------| |>> | LPT1 (378h) | Pins 2 & 3 closed | Pins 2 & 3 closed | |---+----------------+-------------------+-------------------| | | LPT2 (278h) | Pins 2 & 3 closed | Pins 1 & 2 closed | |---+----------------+-------------------+-------------------| | | LPT3 (3BCh) | Pins 1 & 2 closed | Pins 1 & 2 closed | |---+----------------+-------------------+-------------------| | | Disabled | Pins 1 & 2 closed | Pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | SERIAL PORT 1 CONFIGURATION | |------------------------------------------------------------| | COM | J10 | J11 | |--------------------+-------------------+-------------------| |>> | COM1 (3F8h) | Pins 2 & 3 closed | Pins 2 & 3 closed | |---+----------------+-------------------+-------------------| | | COM2 (2F8h) | Pins 2 & 3 closed | Pins 1 & 2 closed | |---+----------------+-------------------+-------------------| | | COM3 (3E8h) | Pins 1 & 2 closed | Pins 2 & 3 closed | |---+----------------+-------------------+-------------------| | | Disabled | Pins 1 & 2 closed | Pins 1 & 2 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | SERIAL PORT 2 CONFIGURATION | |------------------------------------------------------------| | COM | J12 | J13 | |--------------------+-------------------+-------------------| |>> | COM2 (2F8h) | Pins 2 & 3 closed | Pins 2 & 3 closed | |---+----------------+-------------------+-------------------| | | COM1 (3F8h) | Pins 1 & 2 closed | Pins 2 & 3 closed | |---+----------------+-------------------+-------------------| | | COM4 (2E8h) | Pins 2 & 3 closed | Pins 1 & 2 closed | |---+----------------+-------------------+-------------------| | | Disable | Pins 1 & 2 closed | Pins 1 & 2 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | PARALLEL PORT MODE CONFIGURATION | |------------------------------------------------------------| | Mode | J28 | J29 | |--------------------+-------------------+-------------------| |>> | Printer | Pins 2 & 3 closed | Pins 2 & 3 closed | |---+----------------+-------------------+-------------------| | | EPP & Printer | Pins 1 & 2 closed | Pins 2 & 3 closed | |---+----------------+-------------------+-------------------| | | ECP | Pins 2 & 3 closed | Pins 1 & 2 closed | |---+----------------+-------------------+-------------------| | | EPP & ECP | Pins 1 & 2 closed | Pins 1 & 2 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | ECP DMA SELECTION | |------------------------------------------------------------| | Channel | J38 | J39 | J40 | J41 | J42 | |-----------+---------+---------+---------+---------+--------| | DMA 1 | Closed | Open | Open | Closed | Closed | |-----------+---------+---------+---------+---------+--------| | DMA 3 | Closed | Closed | Closed | Open | Open | |-----------+---------+---------+---------+---------+--------| | Disabled | Open | Open | Open | Open | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | SERIAL PORT INTERRUPT SELECTION | |------------------------------------------------------------| |Serial Port 1|Serial Port| J32 | J33 | J34 |J35 | | | 2 | | | | | |-------------+-----------+---------+---------+---------+----| | | No | No | Open | Open | Open |Open| | |Interrupt | Interrupt | | | | | |--+----------+-----------+---------+---------+---------+----| | | No | IRQ 3 | Open | Closed | Open |Open| | |Interrupt | | | | | | |--+----------+-----------+---------+---------+---------+----| | | No | IRQ 4 | Open |J33/pin 1| Open | | | |Interrupt | | | to | | | | | | | |J34/pin 1| | | |--+----------+-----------+---------+---------+---------| | | | No | IRQ 5 |J32/pin 1| Open | Open | | | |Interrupt | | to | | | | | | | |J33/pin 1| | | | |--+----------+-----------+---------+---------+---------| | | | IRQ 3 | No | Open |J33/pin 2| Open | | | | | Interrupt | | to | | | | | | | |J34/pin 2| | | |--+----------+-----------+---------+---------+---------| | |>> | IRQ3 | IRQ 4 | Open |J33/pin 1| Open | | | | | | | to | | | | | | | |J34/pin 1| | | | | | | | | | | | | | | |J33/pin 2| | | | | | | | to | | | | | | | |J34/pin 2| | | |--+----------+-----------+---------+---------+---------+ | | | IRQ3 | IRQ5 |J32/pin 1| Open | | | | | | to | | | | | | |J33/pin1 | | | | | | | | | | | | | |J33/pin 2| | | | | | | to | | | | | | |J34/pin 2| | | |--+----------+-----------+---------+---------+--------------| | | IRQ4 | No | Open | Open | Closed |Open| | | | Interrupt | | | | | |--+----------+-----------+---------+---------+---------+----| | | IRQ4 | IRQ3 | Open | Closed | Closed |Open| |--+----------+-----------+---------+---------+---------+----| | | IRQ4 | IRQ5 |J32/pin 1| Closed | Open | | | | | | to | | | | | | | |J33/pin 1| | | | |--+----------+-----------+---------+---------+---------| | | | IRQ5 | No | Open | Open |J34/pin 2| | | | | Interrupt | | | to | | | | | | | |J35/pin 2| | |--+----------+-----------+---------+---------+---------| | | | IRQ5 | IRQ3 | Open | Closed |J34/pin 2| | | | | | | | to | | | | | | | |J35/pin 2| | |--+----------+-----------+---------+---------+---------+ | | | IRQ5 | IRQ4 | Open |J33/pin 1| | | | | | | to | | | | | | |J34/pin 1| | | | | | | | | | | | | |J34/pin 2| | | | | | | to | | | | | | |P35/pin 2| | +------------------------------------------------------------+ +------------------------------------------------------------+ | PARALLEL PORT INTERRUPT SELECTION | |------------------------------------------------------------| | IRQ | J35 | J36 | |-------------------------+-----------------+----------------| | | IRQ5 | Closed | Open | |---+---------------------+-----------------+----------------| |>> | IRQ7 | Open | Closed | |---+---------------------+-----------------+----------------| | | No Interrupt | Open | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | MISCELLANEOUS TECHNICAL NOTES | |------------------------------------------------------------| | Jumper J35 serves multiple functions so it appears in both | | serial port and parallel port interrupt selection tables. | +------------------------------------------------------------+