TYAN COMPUTER CORPORATION
=========================

   S1372 (REV. 1.0)

   +------------------------------------------------------------+
   |------------------------------------------------------------|
   | Data bus:     | 16-bit, ISA                                |
   |---------------+--------------------------------------------|
   | Size:         | Half-length, half-height card              |
   |---------------+--------------------------------------------|
   | Hard drive    | Two IDE (AT) interface drives              |
   | supported:    |                                            |
   |---------------+--------------------------------------------|
   | Floppy drives | Two 360KB, 720KB, 1.2MB, 1.44MB, or 2.88MB |
   | supported:    | drives                                     |
   +------------------------------------------------------------+

<gopher://bitreich.org/I/th99/c/S-T/20702-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                   Function                    |  Location  |
   |-----------------------------------------------+------------|
   | 25-pin parallel port                          |    CN1     |
   |-----------------------------------------------+------------|
   | 10-pin serial port 2 - internal               |    CN2     |
   |-----------------------------------------------+------------|
   | 9-pin serial port 1 - external                |    CN3     |
   |-----------------------------------------------+------------|
   | Game port                                     |    CN4     |
   |-----------------------------------------------+------------|
   | 40-pin IDE (AT) Interface connector           |    CN5     |
   |-----------------------------------------------+------------|
   | 34-pin control cable connector - floppy drive |    CN6     |
   |-----------------------------------------------+------------|
   | 4-pin connector - drive active LED            |    CN7     |
   |-----------------------------------------------+------------|
   | 14-pin connector - Custom IRQ Header          |    CN8     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function              | Location |  Setting   |
   |------------------------------------+----------+------------|
   |>> | Game port enabled              |    J6    |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Game port disabled             |    J6    |    open    |
   |---+--------------------------------+----------+------------|
   |>> | IDE IRQ14 enabled              |   J22    | pins 2 & 3 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | IDE IRQ15 enabled              |   J22    | pins 1 & 2 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | Factory configured - do not    |   J50    |    n/a     |
   |   | alter                          |          |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                SERIAL PORT 1 CONFIGURATION                 |
   |------------------------------------------------------------|
   |   COM/Address    |        J14         |        J15         |
   |------------------+--------------------+--------------------|
   |>> |  COM1/3F8h   | pins 2 & 3 closed  | pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   |  COM2/2F8h   | pins 2 & 3 closed  | pins 1 & 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                SERIAL PORT 1 CONFIGURATION                 |
   |------------------------------------------------------------|
   |   COM/Address    |        J14         |        J15         |
   |------------------+--------------------+--------------------|
   |    COM3/3E8h     | pins 1 & 2 closed  | pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |     Disabled     | pins 1 & 2 closed  | pins 1 & 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                SERIAL PORT 2 CONFIGURATION                 |
   |------------------------------------------------------------|
   |   COM/Address    |        J16         |        J17         |
   |------------------+--------------------+--------------------|
   |>> |  COM2/2F8h   | pins 2 & 3 closed  | pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   |  COM1/3F8h   | pins 2 & 3 closed  | pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |  COM4/2E8h   | pins 1 & 2 closed  | pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   |   Disabled   | pins 1 & 2 closed  | pins 1 & 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |          SERIAL PORTS 1 &AMP; 2 INTERRUPT SELECT           |
   |------------------------------------------------------------|
   |    Port 1    |  Port 2  |   J1   |   J2    |   J3   |  J4  |
   |--------------+----------+--------+---------+--------+------|
   |>> |   IRQ4   |   IRQ3   |  open  | closed  | closed | open |
   |---+----------+----------+--------+---------+--------+------|
   |   |   IRQ4   | Disabled |  open  | closed  |  open  | open |
   |---+----------+----------+--------+---------+--------+------|
   |   | Disabled |   IRQ3   |  open  |  open   | closed | open |
   |---+----------+----------+--------+---------+--------+------|
   |   |   IRQ3   |   IRQ4   |  open  | J2 pin  |  Open  |      |
   |   |          |          |        | 1 to J3 |        |      |
   |   |          |          |        |  pin 1  |        |      |
   |   |          |          |        | closed, |        |      |
   |   |          |          |        |   and   |        |      |
   |   |          |          |        |         |        |      |
   |   |          |          |        | J2 pin  |        |      |
   |   |          |          |        | 2 to J3 |        |      |
   |   |          |          |        |  pin 2  |        |      |
   |   |          |          |        | closed  |        |      |
   |---+----------+----------+--------+---------+--------|      |
   |   |   IRQ3   | Disabled |  open  | J2 pin  |  Open  |      |
   |   |          |          |        | 1 to J3 |        |      |
   |   |          |          |        |  pin 1  |        |      |
   |   |          |          |        | closed  |        |      |
   |---+----------+----------+--------+---------+--------|      |
   |   | Disabled |   IRQ4   |  open  | J2 pin  |  Open  |      |
   |   |          |          |        | 2 to J3 |        |      |
   |   |          |          |        |  pin 2  |        |      |
   |   |          |          |        | closed  |        |      |
   |---+----------+----------+--------+---------+--------|      |
   |   |   IRQ5   |   IRQ3   |  open  | closed  | J3 pin |      |
   |   |          |          |        |         |  2 to  |      |
   |   |          |          |        |         | J4 pin |      |
   |   |          |          |        |         |   2    |      |
   |   |          |          |        |         | closed |      |
   |---+----------+----------+--------+---------+--------|      |
   |   |   IRQ5   | Disabled |  open  |  open   | J3 pin |      |
   |   |          |          |        |         |  2 to  |      |
   |   |          |          |        |         | J4 pin |      |
   |   |          |          |        |         |   2    |      |
   |   |          |          |        |         | closed |      |
   |---+----------+----------+--------+---------+--------|      |
   |   |   IRQ4   |   IRQ5   | J1 pin | closed  |  open  |      |
   |   |          |          |  2 to  |         |        |      |
   |   |          |          | J2 pin |         |        |      |
   |   |          |          |   2    |         |        |      |
   |   |          |          | closed |         |        |      |
   |---+----------+----------+--------+---------+--------|      |
   |   | Disabled |   IRQ5   | J1 pin |  open   |  open  |      |
   |   |          |          |  2 to  |         |        |      |
   |   |          |          | J2 pin |         |        |      |
   |   |          |          |   2    |         |        |      |
   |   |          |          | closed |         |        |      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                PARALLEL PORT CONFIGURATION                 |
   |------------------------------------------------------------|
   |   LPT/Address    |        J18         |        J19         |
   |------------------+--------------------+--------------------|
   |>> |  LPT1/378h   | pins 2 & 3 closed  | pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   |  LPT2/278h   | pins 2 & 3 closed  | pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |  LPT3/3BCh   | pins 1 & 2 closed  | pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |   Disabled   | pins 1 & 2 closed  | pins 2 & 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               PARALLEL PORT INTERRUPT SELECT               |
   |------------------------------------------------------------|
   |          IRQ           |       J4        |       J5        |
   |------------------------+-----------------+-----------------|
   |>> |        IRQ7        |      open       |     closed      |
   |---+--------------------+-----------------+-----------------|
   |   |        IRQ5        |     closed      |      open       |
   |---+--------------------+-----------------+-----------------|
   |   |      Disabled      |      open       |      open       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              ADVANCED PARALLEL PORT FUNCTIONS              |
   |------------------------------------------------------------|
   |            Setting             |     J23     |     J24     |
   |--------------------------------+-------------+-------------|
   |>>  |  Standard PRN mode only   | pins 2 & 3  | pins 2 & 3  |
   |    |          enabled          |   closed    |   closed    |
   |----+---------------------------+-------------+-------------|
   |    |  ECP, EPP and PRN modes   | pins 1 & 2  | pins 1 & 2  |
   |    |          enabled          |   closed    |   closed    |
   |----+---------------------------+-------------+-------------|
   |    | EPP and PRN modes enabled | pins 1 & 2  | pins 2 & 3  |
   |    |                           |   closed    |   closed    |
   |----+---------------------------+-------------+-------------|
   |    | ECP and PRN modes enabled | pins 2 & 3  | pins 1 & 2  |
   |    |                           |   closed    |   closed    |
   |------------------------------------------------------------|
   | Note:ECP = Extended Capabilities Mode, EPP = Enhanced      |
   | Parallel Port.                                             |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |        EXTENDED CAPABILITIES PORT (ECP) DMA SELECT         |
   |------------------------------------------------------------|
   |     DMA      |   J7   |   J8    |   J9   |  J10   |  J11   |
   |--------------+--------+---------+--------+--------+--------|
   |>> | Disabled |  open  |  open   |  open  |  open  |  open  |
   |---+----------+--------+---------+--------+--------+--------|
   |   |   DMA1   | closed |  open   |  open  | closed | closed |
   |---+----------+--------+---------+--------+--------+--------|
   |   |   DMA3   | closed | closed  | closed |  open  |  open  |
   |------------------------------------------------------------|
   | Note:DMA3 is the preferred setting when the ECP mode is    |
   | enabled.                                                   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 FLOPPY DRIVE CONFIGURATION                 |
   |------------------------------------------------------------|
   |     Address      |        J12         |        J13         |
   |------------------+--------------------+--------------------|
   |>> |     3F0h     | pins 2 & 3 closed  | pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |     370h     | pins 1 & 2 closed  | pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |   Disabled   |        N/A         | pins 2 & 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   IDE PORT CONFIGURATION                   |
   |------------------------------------------------------------|
   |     Address      |        J20         |        J21         |
   |------------------+--------------------+--------------------|
   |>> |     1F0h     | pins 2 & 3 closed  | pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   |     170h     | pins 1 & 2 closed  | pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   |   Disabled   |        N/A         | pins 1 & 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               MISCELLANEOUS TECHNICAL NOTES                |
   |------------------------------------------------------------|
   |  CN8 is used to configure the card to comply with the PCI  |
   |   IDE Legacy convention. A special cable is required to    |
   |             connect to applicable hard drives.             |
   +------------------------------------------------------------+