DISTRIBUTED PROCESSING TECHNOLOGY
=================================

   PM2012B/90

   Data bus: 32-bit, EISA

   Size: Full-length, full-height card

   Hard drives supported:  Up to seven SCSI devices

   Floppy drives supported: None

   Sector interleave:  1:1

<gopher://bitreich.org/I/th99/c/C-D/20087-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                 Function                 |    Location     |
   |------------------------------------------+-----------------|
   | Memory module connector                  |       CN1       |
   |------------------------------------------+-----------------|
   | Memory module connector                  |       CN2       |
   |------------------------------------------+-----------------|
   | Cache module connector                   |       CN3       |
   |------------------------------------------+-----------------|
   | Cache module connector                   |       CN4       |
   |------------------------------------------+-----------------|
   | Disk mirroring module connector          |       CN5       |
   |------------------------------------------+-----------------|
   | 4-pin connector-drive active LED         |       CN6       |
   |------------------------------------------+-----------------|
   | Disk mirroring module connector          |       CN7       |
   |------------------------------------------+-----------------|
   | 50-pin SCSI connector-internal           |      CN10       |
   |------------------------------------------+-----------------|
   | 50-pin SCSI connector-external           |      CN11       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |           Function           |   Location   |   Setting    |
   |------------------------------+--------------+--------------|
   |>> | BIOS disabled            |     JP7      |     open     |
   |---+--------------------------+--------------+--------------|
   |   | BIOS enabled             |     JP7      |    closed    |
   |---+--------------------------+--------------+--------------|
   |>> | BIOS address C800h       |     JP19     |     open     |
   |---+--------------------------+--------------+--------------|
   |   | BIOS address D800h       |     JP19     |    closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      LED INFORMATION                       |
   |------------------------------------------------------------|
   |                  Function                   |   Location   |
   |---------------------------------------------+--------------|
   | Busy                                        |     LED1     |
   |---------------------------------------------+--------------|
   | Computer bus transfer to controller         |     LED2     |
   |---------------------------------------------+--------------|
   | Computer bus transfer from controller       |     LED3     |
   |---------------------------------------------+--------------|
   | Cache hit                                   |     LED4     |
   |---------------------------------------------+--------------|
   | Disk read-ahead active                      |     LED5     |
   |---------------------------------------------+--------------|
   | Disk read                                   |     LED6     |
   |---------------------------------------------+--------------|
   | Disk write                                  |     LED7     |
   |---------------------------------------------+--------------|
   | Controller reset                            |     LED8     |
   |---------------------------------------------+--------------|
   | Controller interrupt pending to computer    |     LED9     |
   |---------------------------------------------+--------------|
   | DRQ asserted to computer                    |    LED10     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               MISCELLANEOUS TECHNICAL NOTES                |
   |------------------------------------------------------------|
   |    There are only two user configurable jumpers on the     |
   |           PM2012B/90 (BIOS address and enable),            |
   |                                                            |
   |   all other configurations are done through the software   |
   |               supplied with the controller.                |
   +------------------------------------------------------------+