CMS ENHANCEMENTS, INC.
======================

   HCWD7VSE1/2

   +------------------------------------------------------------+
   |------------------------------------------------------------|
   | Data bus:         | 16-bit ISA                             |
   |-------------------+----------------------------------------|
   | Size:             | Three-quarter length, half-height card |
   |-------------------+----------------------------------------|
   | Hard drive        | Two ESDI ST506/412 drives              |
   | supported:        |                                        |
   |-------------------+----------------------------------------|
   | Floppy drives     | 360KB, 720KB, 1.2MB, 1.44MB            |
   | supported:        |                                        |
   +------------------------------------------------------------+

<gopher://bitreich.org/I/th99/c/C-D/20525-1.png>
   

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

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function                | Location | Setting |
   |---------------------------------------+----------+---------|
   |>> | Caching enabled                   |   W1/A   |  open   |
   |---+-----------------------------------+----------+---------|
   |   | Caching disabled                  |   W1/A   | closed  |
   |---+-----------------------------------+----------+---------|
   |>> | Four byte ECC mode enabled        |   W1/B   |  open   |
   |---+-----------------------------------+----------+---------|
   |   | Seven byte ECC mode enabled       |   W1/B   | closed  |
   |---+-----------------------------------+----------+---------|
   |>> | Disk address translation enabled  |   W1/C   |  open   |
   |---+-----------------------------------+----------+---------|
   |   | Disk address translation disabled |   W1/C   | closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |           USER CONFIGURABLE SETTINGS(CONTINUED)            |
   |------------------------------------------------------------|
   |              Function              | Location |  Setting   |
   |------------------------------------+----------+------------|
   |>> | Factory configured - do not    |   W1/D   |    open    |
   |   | alter                          |          |            |
   |---+--------------------------------+----------+------------|
   |>> | Sectors per track determined   |   W1/E   |    open    |
   |   | by drive jumpers               |          |            |
   |---+--------------------------------+----------+------------|
   |   | Sectors per track not          |   W1/E   |   closed   |
   |   | determined by drive jumpers    |          |            |
   |---+--------------------------------+----------+------------|
   |>> | Alternate hard drive sectors   |   W1/F   |    open    |
   |   | disabled                       |          |            |
   |---+--------------------------------+----------+------------|
   |   | Alternate hard drive sectors   |   W1/F   |   closed   |
   |   | enabled                        |          |            |
   |---+--------------------------------+----------+------------|
   |>> | BIOS enabled                   |    W3    |    open    |
   |---+--------------------------------+----------+------------|
   |   | BIOS disabled                  |    W3    |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | Single speed floppy drive      |    W5    |    open    |
   |   | interface enabled              |          |            |
   |---+--------------------------------+----------+------------|
   |   | Dual speed floppy drive        |    W5    |   closed   |
   |   | interface enabled              |          |            |
   |---+--------------------------------+----------+------------|
   |>> | Floppy drive address 3F2h      |    W6    |    open    |
   |   | select                         |          |            |
   |---+--------------------------------+----------+------------|
   |   | Floppy drive address 372h      |    W6    |   closed   |
   |   | select                         |          |            |
   |---+--------------------------------+----------+------------|
   |>> | Interrupt IRQ14 enabled        |    W7    | pins 1 & 2 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Interrupt IRQ15 enabled        |    W7    | pins 2 & 3 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | Base memory address is CC000h  |    W8    | pins 2 & 3 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Base memory address is C8000h  |    W8    | pins 1 & 2 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | Hard drive address is 1F0h     |   W12    |    open    |
   |---+--------------------------------+----------+------------|
   |   | Hard drive address is 170h     |   W12    |   closed   |
   +------------------------------------------------------------+