STANDARD MICROSYSTEMS CORPORATION
=================================

   SMC 4003-PC

   +------------------------------------------------------------+
   |------------------------------------------------------------|
   | Data bus:                | 8-bit, ISA                      |
   |--------------------------+---------------------------------|
   | Size:                    | Full-length, full-height card   |
   |--------------------------+---------------------------------|
   | Hard drive supported:    | Two MFM ST506/412 drives        |
   |--------------------------+---------------------------------|
   | Floppy drives supported: | None                            |
   +------------------------------------------------------------+

<gopher://bitreich.org/I/th99/c/S-T/20262-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                 Function                  |    Location    |
   |-------------------------------------------+----------------|
   | 34-pin control cable connector-hard drive |      CN1       |
   |-------------------------------------------+----------------|
   | 20-pin data cable connector-drive 0       |      CN2       |
   |-------------------------------------------+----------------|
   | 20-pin data cable connector-drive 1       |      CN3       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                DRIVE 1 CONFIGURATION - JP2                 |
   |------------------------------------------------------------|
   |Type| Capacity  |Heads |Cylinders|Jumper 5|Jumper 6|Jumper 7|
   |----+-----------+------+---------+--------+-----------------|
   | 1  |Drive 1 Not| open |  open   |  open  |                 |
   |    |installed  |      |         |        |                 |
   |----+-----------+------+---------+--------|                 |
   | 2  |Drive 0 and|closed|  open   |  open  |                 |
   |    |1          |      |         |        |                 |
   |    |parameters |      |         |        |                 |
   |    |are the    |      |         |        |                 |
   |    |same       |      |         |        |                 |
   |----+-----------+------+---------+--------+-----------------|
   | 3  |   10MB    |  4   |   306   |  open  | closed |  open  |
   |----+-----------+------+---------+--------+--------+--------|
   | 4  |   20MB    |  8   |   306   | closed | closed |  open  |
   |----+-----------+------+---------+--------+--------+--------|
   | 5  |   10MB    |  2   |   612   |  open  |  open  | closed |
   |----+-----------+------+---------+--------+--------+--------|
   | 6  |   20MB    |  4   |   612   | closed |  open  | closed |
   |----+-----------+------+---------+--------+--------+--------|
   | 7  |  closed   | open |  open   |  open  | closed | closed |
   |----+-----------+------+---------+--------+--------+--------|
   | 8  |   open    | open |  open   | closed | closed | closed |
   +------------------------------------------------------------+

   +--------------------------------------------------------------+
   |                 DRIVE 0 CONFIGURATION - JP2                  |
   |--------------------------------------------------------------|
   |Type|  Capacity  |Heads |Cylinders|Jumper|Jumper|Jumper|Jumper|
   |    |            |      |         |  1   |  2   |  3   |  4   |
   |----+------------+------+---------+------+------+------+------|
   | 1  |    10MB    |  4   |   306   | open | open | open | open |
   |----+------------+------+---------+------+------+------+------|
   | 2  |    20MB    |  8   |   306   |closed| open | open | open |
   |----+------------+------+---------+------+------+------+------|
   | 3  |    15MB    |  6   |   306   | open |closed| open | open |
   |----+------------+------+---------+------+------+------+------|
   | 4  |    5MB     |  2   |   306   |closed|closed| open | open |
   |----+------------+------+---------+------+------+------+------|
   | 5  |    10MB    |  2   |   612   | open | open |closed| open |
   |----+------------+------+---------+------+------+------+------|
   | 6  |    20MB    |  4   |   612   |closed| open |closed| open |
   |----+------------+------+---------+------+------+------+------|
   | 7  |    21MB    |  4   |   640   | open |closed|closed| open |
   |----+------------+------+---------+------+------+------+------|
   | 8  |    32MB    |  6   |   640   |closed|closed|closed| open |
   |----+------------+------+---------+------+------+------+------|
   | 9  |    10MB    |  4   |   320   | open | open | open |closed|
   |----+------------+------+---------+------+------+------+------|
   | 10 |    20MB    |  8   |   320   |closed| open | open |closed|
   |----+------------+------+---------+------+------+------+------|
   | 11 |    42MB    |  5   |   977   | open |closed| open |closed|
   |----+------------+------+---------+------+------+------+------|
   | 12 |    37MB    |  5   |   855   |closed|closed| open |closed|
   |----+------------+------+---------+------+------+------+------|
   | 13 |    32MB    |  5   |   733   | open | open |closed|closed|
   |----+------------+------+---------+------+------+------+------|
   | 14 |    22MB    |  6   |   440   |closed| open |closed|closed|
   |----+------------+------+---------+------+------+------+------|
   | 15 |    12MB    |  4   |   360   | open |closed|closed|closed|
   |----+------------+------+---------+------+------+-------------|
   | 16 |Reserved for|closed| closed  |closed|closed|             |
   |    |non-standard|      |         |      |      |             |
   |    |types*      |      |         |      |      |             |
   |--------------------------------------------------------------|
   |Note:*Only supported by OEM modification.                     |
   +--------------------------------------------------------------+

   +------------------------------------------------------------+
   |               MISCELLANEOUS TECHNICAL NOTES                |
   |------------------------------------------------------------|
   |  The entry point for the SMC 4003-PC's built-in low-level  |
   |                 format program is G=C800:6                 |
   |                                                            |
   |       The entry point for the SMC 4003-PC's built-in       |
   |             head-parking utility is G=C800:4B0             |
   +------------------------------------------------------------+