LARK ASSOCIATES, INC.
=====================

   LRK-330/331

   +------------------------------------------------------------+
   |------------------------------------------------------------|
   | Data bus:         | 16-bit ISA                             |
   |-------------------+----------------------------------------|
   | Size:             | Three-quarter length, full-height card |
   |-------------------+----------------------------------------|
   | Hard drive        | Two ESDI drives                        |
   | supported:        |                                        |
   |-------------------+----------------------------------------|
   | Floppy drives     | Two 360KB, 720KB, 1.2MB, or 1.44MB     |
   | supported:        | drives                                 |
   +------------------------------------------------------------+

<gopher://bitreich.org/I/th99/c/I-L/20885-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                 Function                  |    Location    |
   |-------------------------------------------+----------------|
   | 34-pin cable connector - floppy drive     |       J1       |
   |-------------------------------------------+----------------|
   | 20-pin data cable connector- drive 1      |       J3       |
   |-------------------------------------------+----------------|
   | 20-pin data cable connector- drive 0      |       J4       |
   |-------------------------------------------+----------------|
   | 34-pin control cable connector-hard drive |       J5       |
   |-------------------------------------------+----------------|
   | 4-pin connector - drive active LED        |       J6       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function                | Location | Setting |
   |---------------------------------------+----------+---------|
   |>> | Primary hard drive address is     |    W1    |  open   |
   |   | 1F0h-1F7h                         |          |         |
   |   |                                   |          |         |
   |   | Primary floppy drive address is   |          |         |
   |   | 370h-3F7h                         |          |         |
   |---+-----------------------------------+----------+---------|
   |>> | Secondary hard drive address is   |    W1    | closed  |
   |   | 170h-177h                         |          |         |
   |   |                                   |          |         |
   |   | Secondary floppy drive address is |          |         |
   |   | 370h-377h                         |          |         |
   |---+-----------------------------------+----------+---------|
   |>> | Floppy drive is single speed      |    W2    |  open   |
   |---+-----------------------------------+----------+---------|
   |   | Floppy drive is dual speed        |    W2    | closed  |
   |---+-----------------------------------+----------+---------|
   |>> | Interrupt delay disabled          |    W3    |  open   |
   |---+-----------------------------------+----------+---------|
   |   | Interrupt delay enabled           |    W3    | closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |           USER CONFIGURABLE SETTINGS (CONTINUED)           |
   |------------------------------------------------------------|
   |               Function                | Location | Setting |
   |---------------------------------------+----------+---------|
   |>> | Factory configured - do not alter |    W4    |   N/A   |
   |---+-----------------------------------+----------+---------|
   |>> | IDE(AT) IRQ 14 select             |    W9    | closed  |
   |---+-----------------------------------+----------+---------|
   |   | IDE(AT) IRQ 15 select             |   W10    | closed  |
   |---+-----------------------------------+----------+---------|
   |>> | Floppy drive interface enabled    |   W11    |  open   |
   |---+-----------------------------------+----------+---------|
   |   | Floppy drive interface disabled   |   W11    | closed  |
   |------------------------------------------------------------|
   | Note: W12 is unidentified                                  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   BIOS ADDRESS SELECTION                   |
   |------------------------------------------------------------|
   |    Address     |    W5    |    W6    |    W7    |    W8    |
   |----------------+----------+----------+----------+----------|
   |>> |   C800h    |  closed  |   open   |   open   |   open   |
   |---+------------+----------+----------+----------+----------|
   |   |   CC00h    |   open   |  closed  |   open   |   open   |
   |---+------------+----------+----------+----------+----------|
   |   |   D000h    |   open   |   open   |  closed  |   open   |
   |---+------------+----------+----------+----------+----------|
   |   |   D400h    |   open   |   open   |   open   |  closed  |
   |---+------------+----------+----------+----------+----------|
   |   |  Disabled  |   open   |   open   |   open   |   open   |
   +------------------------------------------------------------+