SILICON VALLEY COMPUTER, INC.
=============================

   ADP20F

   +------------------------------------------------------------+
   |------------------------------------------------------------|
   | Data bus:         | 16-bit, ISA                            |
   |-------------------+----------------------------------------|
   | Size:             | Half-length, full-height card          |
   |-------------------+----------------------------------------|
   | Hard drive        | Two IDE (AT) Interface drives          |
   | supported:        |                                        |
   |-------------------+----------------------------------------|
   | Floppy drives     | Two 360KB, 720KB, 1.2MB, or 1.44MB     |
   | supported:        | drives                                 |
   +------------------------------------------------------------+

<gopher://bitreich.org/I/th99/c/S-T/20465-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                  Function                   |   Location   |
   |---------------------------------------------+--------------|
   | 34-pin control cable connector-floppy drive |      P1      |
   |---------------------------------------------+--------------|
   | 40-pin AT Interface (IDE) connector         |      P2      |
   |---------------------------------------------+--------------|
   | 4-pin connector-Drive active LED            |      P6      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function               |  Location  | Setting |
   |-------------------------------------+------------+---------|
   |>> | Floppy drive enabled            | E1, E6, E7 | closed  |
   |---+---------------------------------+------------+---------|
   |   | Floppy drive disabled           | E1, E6, E7 |  open   |
   |---+---------------------------------+------------+---------|
   |>> | Floppy drive change signal      |     E2     | closed  |
   |   | enabled                         |            |         |
   |---+---------------------------------+------------+---------|
   |   | Floppy drive change signal      |     E2     |  open   |
   |   | disabled                        |            |         |
   |---+---------------------------------+------------+---------|
   |>> | Floppy drive precompensation is |     E3     |  open   |
   |   | 125ns                           |            |         |
   |---+---------------------------------+------------+---------|
   |   | Floppy drive precompensation is |     E3     | closed  |
   |   | 187ns                           |            |         |
   |---+---------------------------------+------------+---------|
   |>> | Single speed floppy drives      |     E4     |  open   |
   |   | supported                       |            |         |
   |---+---------------------------------+------------+---------|
   |   | Dual speed floppy drives        |     E4     | closed  |
   |   | supported                       |            |         |
   |---+---------------------------------+------------+---------|
   |>> | Older Conner hard drives not    |     E5     |  open   |
   |   | supported                       |            |         |
   |---+---------------------------------+------------+---------|
   |   | Older Conner hard drives        |     E5     | closed  |
   |   | supported                       |            |         |
   +------------------------------------------------------------+