UM82C86
From Hackbox
This is an ISA AT Card featuring:
- 1 IDE port
- 1 floppy port
- 2 serial ports
- 1 parallel port
- 1 game port
It was part of a 486DX66.
It has two ICs:
- UM82C863F
- UM82C865F
The PCB is marked with TK-82C863/865-2J-D02
There is a jumper block:
| Jumper | Position | Description | |
|---|---|---|---|
| 1-2 | 2-3 | ||
| JP1 | COM2 | COM4 | Serial port 2 switch |
| JP2 | Enabled | Disabled | Serial port 2 |
| JP3 | Enabled | Disabled | Game port |
| JP4 | COM1 | COM3 | Serial port 1 switch |
| JP5 | LPT1 | LPT2 | Parallel port switch |
| JP6 | Enabled | Disabled | Serial port 1 |
| JP7 | Enabled | Disabled | Floppy Controller |
| JP8 | Exist | Not Exist | Other HDC |
| JP9 | Enabled | Disabled | IDE HDC |
| JP10 | Enabled | Disabled | Parallel port |
