MONOLITHIC SYSTEMS, INC. (COLORADO MSI) ======================================= MICROPAQ 452 REV. B +------------------------------------------------------------+ |------------------------------------------------------------| | Data bus: | 16-bit, ISA | |-------------------+----------------------------------------| | Size: | Full-length, full-height card | |-------------------+----------------------------------------| | Hard drive | Two IDE (AT) Interface drives | | supported: | | |-------------------+----------------------------------------| | Floppy drives | Two 360KB, 720KB, 1.2MB, or 1.44MB | | supported: | drives | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Function | Location | |-----------------------------------------------+------------| | 40-pin IDE(AT) Interface connector | J1 | |-----------------------------------------------+------------| | 34-pin control cable connector - floppy drive | J2 | |-----------------------------------------------+------------| | 26-pin parallel port (LPT1/2/3) - internal | J3 | |-----------------------------------------------+------------| | 10-pin serial port 1 (COM1/2/3/4) - internal | J4 | |-----------------------------------------------+------------| | 10-pin serial port 2 (COM1/2/3/4) - internal | J5 | |-----------------------------------------------+------------| | 4-pin connector - Drive active LED | J6 | |-----------------------------------------------+------------| | 28-pin VESA(VGA) feature connector - internal | J7 | |-----------------------------------------------+------------| | 26-pin VESA(EGA) feature connector - internal | J11 | |-----------------------------------------------+------------| | 15-pin analog VGA port - external | J13 | |-----------------------------------------------+------------| | 9-pin digital EGA port- external | J21 | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Location | Setting | |---------------------------------------+----------+---------| |>> | Pin 34 on IDE interface grounded | J10 | closed | |---+-----------------------------------+----------+---------| | | Pin 34 on IDE interface not | J10 | open | | | grounded | | | |---+-----------------------------------+----------+---------| |>> | Floppy drive precompensation is | J12 | open | | | 125ns | | | |---+-----------------------------------+----------+---------| | | Floppy drive precompensation is | J12 | closed | | | 187ns | | | |---+-----------------------------------+----------+---------| |>> | Hard drive enabled | J14 | closed | |---+-----------------------------------+----------+---------| | | Hard drive disabled | J14 | open | |---+-----------------------------------+----------+---------| |>> | On-board video enabled | J15 | closed | |---+-----------------------------------+----------+---------| | | On-board video disabled | J15 | open | |---+-----------------------------------+----------+---------| |>> | Floppy drive Interrupt IRQ6 | J16 | closed | | | enabled | | | |---+-----------------------------------+----------+---------| | | Floppy drive Interrupt IRQ6 | J16 | open | | | disabled | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Location | Setting | |------------------------------------+----------+------------| |>> | Single speed floppy drives | J17 | open | | | supported | | | |---+--------------------------------+----------+------------| | | Dual speed floppy drives | J17 | closed | | | supported | | | |---+--------------------------------+----------+------------| |>> | 16-bit video bus enabled | J18 | open | |---+--------------------------------+----------+------------| | | 8-bit video bus enabled | J18 | closed | |---+--------------------------------+----------+------------| |>> | Floppy drive change signal | J19 | closed | | | sense enabled | | | |---+--------------------------------+----------+------------| | | Floppy drive change signal | J19 | open | | | sense disabled | | | |---+--------------------------------+----------+------------| |>> | VGA clock enabled (normal | J22 | pins 1 & 2 | | | operation) | | closed | |---+--------------------------------+----------+------------| | | Feature connector clock | J22 | pins 2 & 3 | | | enabled | | closed | |---+--------------------------------+----------+------------| |>> | Hard drive Interrupt IRQ14 | J24 | closed | | | enabled | | | |---+--------------------------------+----------+------------| | | Hard drive Interrupt IRQ14 | J24 | open | | | disabled | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | IDE IOCHRDY PIN SELECTION | | |-------------------------------------------------------| | | Function | J8 | J9 | | |--------------------------------+-----------+----------| | |>> | IDE IOCHRDY from IDE pin | off | on | | | | 21 enabled | | | | |---+----------------------------+-----------+----------| | | | IDE IOCHRDY from IDE pin | on | off | | | | 27 enabled | | | | |---+--------------------------------------------------------| | | Pin 21 setting is for Seagate, CDC, Imprimis, and | | | Miniscribe hard drives. Pin 27 setting is for Quantum | | | hard drives. Conner and WD hard drives ignore the | | | setting of these switches. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SERIAL PORT 1 CONFIGURATION | |------------------------------------------------------------| | COM |S1/switch 1 |S1/switch 2|S1/switch 3|S1/switch 4| |-----------+------------+-----------+-----------+-----------| |>>| 1 | on | off | off | off | |-+---------+------------+-----------+-----------+-----------| | | 2 | off | on | off | off | |-+---------+------------+-----------+-----------+-----------| | | 3 | off | off | on | off | |-+---------+------------+-----------+-----------+-----------| | | 4 | off | off | off | on | |-+---------+------------+-----------+-----------+-----------| | |Disabled | off | off | off | off | +------------------------------------------------------------+ +------------------------------------------------------------+ | SERIAL PORT 1 (J4) INTERRUPT REQUEST | |------------------------------------------------------------| | IRQ | S1/switch 5 | S1/switch 6 | |--------------------+-------------------+-------------------| |>> | 3 | on | off | |---+----------------+-------------------+-------------------| | | 4 | off | on | |---+----------------+-------------------+-------------------| | | Disabled | off | off | +------------------------------------------------------------+ +------------------------------------------------------------+ | PARALLEL PORT (J3) CONFIGURATION - S2 | |------------------------------------------------------------| | LPT | S2/switch 1 | S2/switch 2 | S2/switch 3 | |---------------+--------------+--------------+--------------| |>> | 1 | on | off | off | |---+-----------+--------------+--------------+--------------| | | 2 | off | on | off | |---+-----------+--------------+--------------+--------------| | | 3 | off | off | on | |---+-----------+--------------+--------------+--------------| | | Disabled | off | off | off | +------------------------------------------------------------+ +------------------------------------------------------------+ | PARALLEL PORT (J3) INTERRUPT REQUEST | |------------------------------------------------------------| | IRQ | S2/switch 5 | S2/switch 6 | |--------------------+-------------------+-------------------| |>> | 7 | off | on | |---+----------------+-------------------+-------------------| | | 5 | on | off | |---+----------------+-------------------+-------------------| | | Disabled | off | off | +------------------------------------------------------------+ +------------------------------------------------------------+ | SERIAL PORT 2 CONFIGURATION | |------------------------------------------------------------| | COM |S3/switch 1 |S3/switch 2|S3/switch 3|S3/switch 4| |-----------+------------+-----------+-----------+-----------| |>>| 1 | on | off | off | off | |-+---------+------------+-----------+-----------+-----------| | | 2 | off | on | off | off | |-+---------+------------+-----------+-----------+-----------| | | 3 | off | off | on | off | |-+---------+------------+-----------+-----------+-----------| | | 4 | off | off | off | on | |-+---------+------------+-----------+-----------+-----------| | |Disabled | off | off | off | off | +------------------------------------------------------------+ +------------------------------------------------------------+ | SERIAL PORT 2 (J5) INTERRUPT REQUEST | |------------------------------------------------------------| | IRQ | S3/switch 5 | S3/switch 6 | |--------------------+-------------------+-------------------| |>> | 4 | off | on | |---+----------------+-------------------+-------------------| | | 3 | on | off | |---+----------------+-------------------+-------------------| | | Disabled | off | off | +------------------------------------------------------------+ +------------------------------------------------------------+ | VIDEO DISPLAY CONFIGURATION || |-----------------------------------------------------------|| | Primary Adapter | Secondary |JP20 |S4/1|S4/2|S4/3|S4/4|| | | Adapter | | | | | || |-----------------+---------------+-----+----+----+----+----|| | | *Monochrome |EGA w/CGA 40 x |1 & 2| on | on | on | on || | | | 25 | | | | | || |-+---------------+---------------+-----+----+----+----+----|| | | *Monochrome |EGA w/CGA 80 x |1 & 2|off | on | on | on || | | | 25 | | | | | || |-+---------------+---------------+-----+----+----+----+----|| | | *Monochrome | EGA w/EGA 200 |1 & 2| on |off | on | on || | | | line | | | | | || |-+---------------+---------------+-----+----+----+----+----|| | | *Monochrome | EGA w/EGA 350 |1 & 2|off |off | on | on || | | | line | | | | | || |-+---------------+---------------+-----+----+----+----+----|| | | *CGA 40 x 25 | EGA |2 & 3| on | on |off | on || | | | w/monochrome | | | | | || |-+---------------+---------------+-----+----+----+----+----|| | | *CGA 80 x 25 | EGA |2 & 3|off | on |off | on || | | | w/monochrome | | | | | || |-+---------------+---------------+-----+----+----+----+----|| | |EGA w/CGA 40 x |*Monochrome or |1 & 2| on |off |off | on || | | 25 | none | | | | | || |-+---------------+---------------+-----+----+----+----+----|| | |EGA w/CGA 80 x |*Monochrome or |1 & 2|off |off |off | on || | | 25 | none | | | | | || |-+---------------+---------------+-----+----+----+----+----|| | | EGA w/EGA 200 |*Monochrome or |1 & 2| on | on | on |off || | | line | none | | | | | || |-+---------------+---------------+-----+----+----+----+----|| |>>| EGA w/EGA 350 |*Monochrome or |1 & 2|off | on | on |off || | | line | none | | | | | || |-+---------------+---------------+-----+----+----+----+----|| | | EGA |*CGA 40 x 25 or|2 & 3| on |off | on |off || | | w/monochrome | none | | | | | || |-+---------------+---------------+-----+----+----+----+----|| | | EGA |*CGA 80 x 25 or|2 & 3|off |off | on |off || | | w/monochrome | none | | | | | || |-+---------------+---------------+-------------------------+| | |VGA enable (all|S4/switch 5 on | | | | other modes | | | | | disabled) | | | |-+---------------+---------------| | | |All other modes|S4/switch 5 off| | | | enable (VGA | | | | |mode disabled) | | | |-+----------------------------------------------------------| | |For JP20 pins designated should be in a closed position. | | | | | |When VGA mode is enabled, the settings of JP20 and | | |S4/switch 1 - 4 are ignored. | | | | | |The options with a (*) in front of them require an add-on | | |card to function. | +------------------------------------------------------------+ +------------------------------------------------------------+ | MISCELLANEOUS TECHNICAL NOTES | |------------------------------------------------------------| | The function of S2/switch 4 is undocumented. | | | | All other jumpers are for factory tests and should remain | | factory-configured. | +------------------------------------------------------------+