HwB: Macintosh Mouse Connector
Macintosh Mouse
Available on Macintosh Mac Plus and earlier.
(At the computer)
(At the mouse cable)
9 PIN D-SUB FEMALE at the computer.
9 PIN D-SUB MALE at the mouse cable.
| Pin | Name | Dir | Description |
|---|---|---|---|
| 1 | CGND |  |
Chassis ground |
| 2 | +5V |  |
+5 VDC |
| 3 | CGND | |
Chassis ground |
| 4 | X2 |  |
Horizontal movement line (connected to VIA PB4 line) |
| 5 | X1 | |
Horizontal movement line (connected to SCC DCDA-line) |
| 6 | n/c | - | Not connected |
| 7 | SW- | |
Mouse button line (connected to VIA PB3) |
| 8 | Y2 | |
Vertical movement line (connected to VIA PB5 line) |
| 9 | Y1 | |
Vertical movement line (connected to SCC DCDB-line) |