(TXT) View Source
       
       # PEACOCK AG
       
          80486SX/DX/DX2 (SYMPHONY)
       
          Processor    80486SX/80486DX/80486DX2                          
          Processor    25/33/50(internal)/50/66(internal)MHz             
          Speed        
          Chip Set     Symphony                                          
          Max. Onboard 32MB                                              
          DRAM         
          Cache        64/128/256/1024KB                                 
          BIOS         AMI                                               
          Dimensions   330mm x 218mm                                     
          I/O Options  Floppy drive interface, IDE interface, parallel   
                       port, serial ports (2)                            
          NPU Options  4167 (not present on all boards)                  
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose              | Location | Purpose       | Location |
          |----------------------+----------+---------------+----------|
          | IDE interface        |   CN1    | Turbo LED     |   JP5    |
          |----------------------+----------+---------------+----------|
          | Floppy drive         |   CN2    | Speaker       |   JP7    |
          | interface            |          |               |          |
          |----------------------+----------+---------------+----------|
          | Parallel port        |   CN3    | Power LED &   |   JP9    |
          |                      |          | keylock       |          |
          |----------------------+----------+---------------+----------|
          | Serial port 2        |   CN4    | Reset switch  |   JP11   |
          |----------------------+----------+---------------+----------|
          | Serial port 1        |   CN5    | IDE interface |   JP12   |
          |                      |          | LED           |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               | Jumper |  Position  |
          |--------------------------------------+--------+------------|
          | » | I/O bus speed select             |  JP2   | pins 1 & 2 |
          |   | CPUCLK=CCLK2                     |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | I/O bus speed select CPUCLK=PCLK |  JP2   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Cache support enabled            |  JP6   |    Open    |
          |---+----------------------------------+--------+------------|
          |   | Cache support disabled           |  JP6   |   Closed   |
          |---+----------------------------------+--------+------------|
          | » | Monitor type select color        |  JP10  |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | Monitor type select monochrome   |  JP10  |    Open    |
          |---+----------------------------------+--------+------------|
          | » | On board I/O enabled             |  JP18  | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | On board I/O disabled            |  JP18  | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Parallel port IRQ sleect IRQ7    |  JP19  | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Parallel port IRQ sleect IRQ5    |  JP19  | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Cache controller timing select 1 |  JP30  | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Cache controller timing select 2 |  JP30  | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | CPU oscillator matches CPU speed |  JP36  |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | CPU oscillator matches 2x CPU    |  JP36  |    Open    |
          |   | speed                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | CPU algorithm select 3-2-2-2     |  JP37  |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | CPU algorithm select 2-1-1-1     |  JP37  |    Open    |
          |---+----------------------------------+--------+------------|
          | » | Cache wait state select 0 wait   |  JP38  |    Open    |
          |   | states                           |        |            |
          |---+----------------------------------+--------+------------|
          |   | Cache wait state select 1 wait   |  JP38  |   Closed   |
          |   | state                            |        |            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |       Size       |       Bank 0       |       Bank 1       |
          |------------------+--------------------+--------------------|
          |       1MB        |    (4) 256K x 9    |        NONE        |
          |------------------+--------------------+--------------------|
          |       2MB        |    (4) 256K x 9    |    (4) 256K x 9    |
          |------------------+--------------------+--------------------|
          |       4MB        |     (4) 1M x 9     |        NONE        |
          |------------------+--------------------+--------------------|
          |       5MB        |    (4) 256K x 9    |     (4) 1M x 9     |
          |------------------+--------------------+--------------------|
          |       5MB        |     (4) 1M x 9     |    (4) 256K x 9    |
          |------------------+--------------------+--------------------|
          |       8MB        |     (4) 1M x 9     |     (4) 1M x 9     |
          |------------------+--------------------+--------------------|
          |       16MB       |     (4) 4M x 9     |        NONE        |
          |------------------+--------------------+--------------------|
          |       17MB       |    (4) 256K x 9    |     (4) 4M x 9     |
          |------------------+--------------------+--------------------|
          |       17MB       |     (4) 4M x 9     |    (4) 256K x 9    |
          |------------------+--------------------+--------------------|
          |       20MB       |     (4) 1M x 9     |     (4) 4M x 9     |
          |------------------+--------------------+--------------------|
          |       20MB       |     (4) 4M x 9     |     (4) 1M x 9     |
          |------------------+--------------------+--------------------|
          |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          |    Size    |    Bank 0     |    Bank 1     |      TAG      |
          |------------+---------------+---------------+---------------|
          |    64KB    |  (4) 8K x 8   |  (4) 8K x 8   |  (1) 8K x 8   |
          |------------+---------------+---------------+---------------|
          |   128KB    |  (4) 32K x 8  |     NONE      |  (1) 8K x 8   |
          |------------+---------------+---------------+---------------|
          |   256KB    |  (4) 32K x 8  |  (4) 32K x 8  |  (1) 32K x 8  |
          |------------+---------------+---------------+---------------|
          |    1MB     | (4) 128K x 8  | (4) 128K x 8  | (1) 128K x 8  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CACHE JUMPER CONFIGURATION                 |
          |------------------------------------------------------------|
          |  Size  |  JP20  |  JP21  |  JP22  |  JP23  | JP24  | JP25  |
          |--------+--------+--------+--------+--------+-------+-------|
          |  64KB  | 2 & 3  | 2 & 3  | 2 & 3  |  Open  | 2 & 3 | 2 & 3 |
          |--------+--------+--------+--------+--------+-------+-------|
          | 128KB  | 1 & 2  |  Open  | 1 & 2  | Closed | 1 & 2 | 1 & 2 |
          |--------+--------+--------+--------+--------+-------+-------|
          | 256KB  | 2 & 3  | 1 & 2  | 2 & 3  |  Open  | 2 & 3 | 2 & 3 |
          |--------+--------+--------+--------+--------+-------+-------|
          |  1MB   | 2 & 3  | 1 & 2  | 2 & 3  |  Open  | 2 & 3 | 2 & 3 |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed positon.     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             CACHE JUMPER CONFIGURATION (CON’T)             |
          |------------------------------------------------------------|
          | Size  | JP26  | JP27  | JP31 | JP32 | JP33 | JP34 |  JP35  |
          |-------+-------+-------+------+------+------+------+--------|
          | 64KB  | 2 & 3 | 2 & 3 | 1 &  | 1 &  | 1 &  | 1 &  | Closed |
          |       |       |       |  2   |  2   |  2   |  2   |        |
          |-------+-------+-------+------+------+------+------+--------|
          | 128KB | 1 & 2 | 1 & 2 | 1 &  | 1 &  | 2 &  | 1 &  | Closed |
          |       |       |       |  2   |  2   |  3   |  2   |        |
          |-------+-------+-------+------+------+------+------+--------|
          | 256KB | 2 & 3 | 2 & 3 | 1 &  | 2 &  | 2 &  | 1 &  | Closed |
          |       |       |       |  2   |  3   |  3   |  2   |        |
          |-------+-------+-------+------+------+------+------+--------|
          |  1MB  | 2 & 3 | 2 & 3 | 2 &  | 2 &  | 2 &  | 2 &  | Closed |
          |       |       |       |  3   |  3   |  3   |  3   |        |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed positon.     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU TYPE CONFIGURATION                   |
          |------------------------------------------------------------|
          |     Type     |        JP1        |    JP3     |    JP4     |
          |--------------+-------------------+------------+------------|
          |   80486SX    | pins 2 & 3 closed |    Open    |    Open    |
          |--------------+-------------------+------------+------------|
          |   80486DX    | pins 1 & 2 closed |   Closed   |   Closed   |
          |--------------+-------------------+------------+------------|
          |   80486DX2   | pins 1 & 2 closed |   Closed   |   Closed   |
          +------------------------------------------------------------+