brmlab

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====== WinBond W83757S ======
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FCCID: ID2-W8375S

Main chip: Winbond W83757F

=== Configuration switch ===
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^ Port 1 (J4) – IRQ  ^ JP2-A                   ^ JP2-B  ^ J5-A   ^ J5B    ^ J5C    ^
| com1               | 2-3                     | 1-2    | close  | open   | open   |
| com3               | 1-2                     | 2-3    | open   | close  | open   |
| com4               | 2-3                     | 2-3    | open   | open   | close  |
| disable            | 1-2                     | 1-2    | -      | -      | -      |


^ Port 2 (j6) – IRJ  ^ JP2-C                   ^ JP2-D  ^ J5-A   ^ J5B    ^ J5C    ^
| com2               | 2-3                     | 1-2    | close  | open   | open   |
| com4               | 2-3                     | 2-3    | open   | close  | open   |
| com3               | 1-2                     | 2-3    | open   | open   | close  |
| disable            | 1-2                     | 1-2    | -      | -      | -      |


^ paralel port       ^ JP2E                    ^ JP2F   ^
| lpt1               | 1-2                     | 2-3    |
| lpt2               | 2-3                     | 1-2    |
| lpt3               | 2-3                     | 2-3    |
| disable            | 1-2                     | 1-2    |


^ Paralel interrupt  ^ J5G                     ^ J5H    ^
| IRQ7               | close                   | open   |
| IRQ5               | open                    | close  |


^ IDE                ^ address                 ^ JP4A   ^ JP4B   ^
| enabled            | 1F0h-1F7h,  3F6h, 3F7h  | 1-2    | 2-3    |
| disabled           | 170h-177h, 376h, 3F7h   | 2-3    | 1-2    |


^ Floppy             ^ address                 ^ JP4C   ^ JP4D   ^
| enable             | 3F0h-3F7h               | 1-2    | 2-3    |
| disable            | 370h-377h               | 2-3    | 1-2    |

=== external links ===
  * compatible controler KW-556N https://stason.org/TULARC/pc/hard-disk-floppy-controllers/I-L/KOUWELL-ELECTRONICS-CORPORATION-Two-IDE-AT-Interfa-41.html
    * https://www.vogons.org/viewtopic.php?t=65349
  * some useless info about winbond controllers: https://web.natur.cuni.cz/~kuda/howtos/winbond.html
  * another useless info about winbod https://computer-retro.de/Multi-IO.html