ADAPTEC, INC.
=============

   ACB-2322A (VERSION 2)

   Data bus:                16-bit, ISA                           
   Size:                    Full-length full-height card          
   Hard drives supported:   Two RLL ESDI                          
   Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB    

<gopher://bitreich.org/I/th99/c/A-B/20014-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                 Function                  |    Location    |
   |-------------------------------------------+----------------|
   | 34-pin data cable connector-floppy drive  |       J1       |
   |-------------------------------------------+----------------|
   | 20-pin data cable connector-drive 0       |       J2       |
   |-------------------------------------------+----------------|
   | 20-pin data cable connector-drive 1       |       J3       |
   |-------------------------------------------+----------------|
   | 34-pin control cable connector-hard drive |       J4       |
   |-------------------------------------------+----------------|
   | 4-pin connector-drive active LED          |       J5       |
   |-------------------------------------------+----------------|
   | Serial monitor output                     |      J13       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |            Function            |   Location   |  Setting   |
   |--------------------------------+--------------+------------|
   |>> | BIOS address C800-CBFFh    |     J11      | pins 1 & 2 |
   |   |                            |              |   closed   |
   |---+----------------------------+--------------+------------|
   |   | BIOS address- CC00-CFFFh   |     J11      | pins 2 & 3 |
   |   |                            |              |   closed   |
   |---+----------------------------+--------------+------------|
   |>> | Hard drive address         | J12/jumper 1 |    open    |
   |   | 1F0-1FFh                   |              |            |
   |---+----------------------------+--------------+------------|
   |   | Hard drive address         | J12/jumper 1 |   closed   |
   |   | 170-177h                   |              |            |
   |---+----------------------------+--------------+------------|
   |>> | Floppy address 3F0-3F7h    | J12/jumper 2 |    open    |
   |---+----------------------------+--------------+------------|
   |   | Floppy address 370-377h    | J12/jumper 2 |   closed   |
   |---+----------------------------+--------------+------------|
   |>> | Zero wait state disabled   | J12/jumper 3 |    open    |
   |---+----------------------------+--------------+------------|
   |   | Zero wait state enabled    | J12/jumper 3 |   closed   |
   |---+----------------------------+--------------+------------|
   |>> | Not used                   | J12 jumper 4 |    open    |
   |   |                            |     & 5      |            |
   |---+----------------------------+--------------+------------|
   |>> | Serial monitor disabled    | J12/jumper 6 |    open    |
   |---+----------------------------+--------------+------------|
   |   | Serial monitor enabled     | J12/jumper 6 |   closed   |
   |   | (2400b)                    |              |            |
   |---+----------------------------+--------------+------------|
   |>> | Hard drive Interrupt is    |     J18      | pins 1 & 2 |
   |   | IRQ14                      |              |   closed   |
   |---+----------------------------+--------------+------------|
   |   | Hard drive Interrupt is    |     J18      | pins 2 & 3 |
   |   | IRQ15                      |              |   closed   |
   |---+----------------------------+--------------+------------|
   |>> | Not used                   |     J18      | pins 3 & 4 |
   |   |                            |              |    open    |
   |---+----------------------------+--------------+------------|
   |>> | Floppy drive DMA           |     J19      | pins 1 & 2 |
   |   | Acknowledge Is DACK2       |              |   closed   |
   |---+----------------------------+--------------+------------|
   |   | Floppy drive DMA           |     J19      | pins 2 & 3 |
   |   | Acknowledge is DACK3       |              |   closed   |
   |---+----------------------------+--------------+------------|
   |>> | Floppy drive Interrupt is  |     J20      | pins 1 & 2 |
   |   | IRQ6                       |              |   closed   |
   |---+----------------------------+--------------+------------|
   |   | Floppy drive Interrupt is  |     J20      | pins 2 & 3 |
   |   | IRQ10                      |              |   closed   |
   |---+----------------------------+--------------+------------|
   |>> | Floppy drive DMA Request   |     J21      | pins 2 & 3 |
   |   | is DREQ2                   |              |   closed   |
   |---+----------------------------+--------------+------------|
   |   | Floppy drive DMA Request   |     J21      | pins 1 & 2 |
   |   | is DREQ3                   |              |   closed   |
   +------------------------------------------------------------+