MYLEX CORPORATION
=================

   DCE376

   +------------------------------------------------------------+
   +------------------------------------------------------------+

   Data bus: 32 bit, EISA

   Size: Full-length, full-height card

   Hard drives supported:  Up to seven SCSI devices

   Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB

   Maximum heads/cyl.: 16 heads and 2048 cylinders

<gopher://bitreich.org/I/th99/c/M-O/20138-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                   Function                   |  Location   |
   |----------------------------------------------+-------------|
   | 34-pin data cable connector-floppy drive     |     P0      |
   |----------------------------------------------+-------------|
   | 50-pin SCSI connector-internal               |     P3      |
   |----------------------------------------------+-------------|
   | 4-pin connector-drive active LED             |     P5      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |          USER CONFIGURABLE SETTINGS (FOR REV 1D)           |
   |------------------------------------------------------------|
   |             Function              | Location  |  Setting   |
   |-----------------------------------+-----------+------------|
   |>> | Factory configured - do not   |  J1 & J2  | pins 2 & 3 |
   |   | alter                         |           |   closed   |
   |---+-------------------------------+-----------+------------|
   |>> | Supports 64K PROM             |    J5     | pins 2 & 3 |
   |   |                               |           |   closed   |
   |---+-------------------------------+-----------+------------|
   |   | Supports 128K PROM            |    J5     | pins 1 & 2 |
   |   |                               |           |   closed   |
   |---+-------------------------------+-----------+------------|
   |>> | Hard Drive Interrupt IRQ14    |    J10    | pins 1 & 2 |
   |   | enabled                       |           |   closed   |
   |---+-------------------------------+-----------+------------|
   |   | Hard Drive Interrupt IRQ14    |    J10    |    open    |
   |   | disabled                      |           |            |
   |---+-------------------------------+-----------+------------|
   |>> | Factory configured - do not   |    J11    | pins 2 & 3 |
   |   | alter                         |           |   closed   |
   |---+-------------------------------+-----------+------------|
   |>> | Factory configured - do not   | J12 & J13 | pins 1 & 2 |
   |   | alter                         |           |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |          USER CONFIGURABLE SETTINGS (FOR REV 1E)           |
   |------------------------------------------------------------|
   |              Function              | Location |  Setting   |
   |------------------------------------+----------+------------|
   |>> | Supports 64K PROM              |    J1    | pins 2 & 3 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Supports 128K PROM             |    J1    | pins 1 & 2 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | Factory configured - do not    |    J2    | pins 2 & 3 |
   |   | alter                          |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | Factory configured - do not    |    J9    | pins 2 & 3 |
   |   | alter                          |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | Hard Drive Interrupt IRQ14     |   J10    | pins 1 & 2 |
   |   | enabled                        |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Hard Drive Interrupt IRQ14     |   J10    |    open    |
   |   | disabled                       |          |            |
   |---+--------------------------------+----------+------------|
   |>> | Floppy drive enabled           |   J11    | pins 2 & 3 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Floppy drive disabled          |   J11    | pins 1 & 2 |
   |   |                                |          |   closed   |
   |   | (Revisions prior to "1E"       |          |            |
   |   | require special PROM's)        |          |            |
   |---+--------------------------------+----------+------------|
   |>> | Factory configured - do not    |   J12    | pins 1 & 2 |
   |   | alter                          |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | DCE376 emulates primary        |   J13    | pins 1 & 2 |
   |   | controller position            |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | DCE376 emulates secondary      |   J13    | pins 2 & 3 |
   |   | controller position            |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Factory setting for 3Px        |   J14    | pins 1 & 2 |
   |   | firmware                       |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Factory setting for 2Px        |   J14    | pins 2 & 3 |
   |   | firmware                       |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | Factory configured - do not    |   J16    |    open    |
   |   | alter                          |          |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              CACHE CONFIGURATION (FOR REV 1D)              |
   |------------------------------------------------------------|
   |  Size  |   J3   |   J4   |   J6   |   J7   |  J8   |  J9   |
   |--------+--------+--------+--------+--------+-------+-------|
   | 256KB  | pins 1 | pins 1 |  open  | pins 1 | pins  | pins  |
   |        |  & 2   |  & 2   |        |  & 2   | 1 & 2 | 1 & 2 |
   |--------+--------+--------+--------+--------+-------+-------|
   | 1024KB | pins 2 | pins 2 |  open  | pins 1 | pins  | pins  |
   |        |  & 3   |  & 3   |        |  & 2   | 2 & 3 | 1 & 2 |
   |--------+--------+--------+--------+--------+-------+-------|
   | 4096KB | pins 2 |  open  | pins 2 | pins 2 | pins  | pins  |
   |        |  & 3   |        |  & 3   |  & 3   | 2 & 3 | 2 & 3 |
   |------------------------------------------------------------|
   | Note:Pins designated should be in the closed position.     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              CACHE CONFIGURATION (FOR REV 1E)              |
   |------------------------------------------------------------|
   |  Size  |   J3   |   J4   |   J5   |   J6   |  J7   |  J8   |
   |--------+--------+--------+--------+--------+-------+-------|
   | 256KB  | pins 1 | pins 1 | pins 1 |  open  | pins  | pins  |
   |        |  & 2   |  & 2   |  & 2   |        | 1 & 2 | 1 & 2 |
   |--------+--------+--------+--------+--------+-------+-------|
   | 1024KB | pins 2 | pins 2 | pins 1 |  open  | pins  | pins  |
   |        |  & 3   |  & 3   |  & 2   |        | 2 & 3 | 1 & 2 |
   |--------+--------+--------+--------+--------+-------+-------|
   | 4096KB | pins 2 |  open  |  2-3   | pins 2 | pins  | pins  |
   |        |  & 3   |        | closed |  & 3   | 2 & 3 | 2 & 3 |
   |------------------------------------------------------------|
   | Note:Pins designated should be in the closed position.     |
   +------------------------------------------------------------+