Serielle Schnittstelle (Mac+)Mac Plus
Serielle Schnittstelle (Mac+)
Mausanschluß (Mac+)
| Pin | Name | Beschreibung & Anmerkungen |
|---|---|---|
| 1 | Ground | |
| 2 | +5V | See Inside Macintosh for power limits |
| 3 | GND | Ground |
| 4 | X2 | Horizontal movement line (connected to VIA PB4 line) |
| 5 | X1 | Horizontal movement line (connected to SCC DCDA- line) |
| 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) |
Mauskabel (Mac+)
Aus dem Usenet (comp.sys.mac.hardware)
Here is what I learned from looking at the engravings on the circuit board and using my continuity checker. Below is a chart showing what we found out. The 6-pin plug is read with the mouse guts facing up, the ball to your left and the tail facing to the right. The DB-9 plug is read from left to right within the rows, with the row of 5 pins on top.
| No | DB-9 Plug | Function | No | Inside 6-pin plug |
|---|---|---|---|---|
| 1 | black | Ground | 3 | black (to 3, then to button) |
| 2 | Red | +5 V | 5 | red |
| 3 | black | Ground | 3 | black (same, only one inside) |
| 4 | brown | Left | 6 | brown |
| 5 | orange | Right | 1 | orange |
| 6 | not used | not used | ||
| 7 | yellow | Button | goes directly to button | |
| 8 | green | Down | 4 | green |
| 9 | blue | Up | 2 | blue |
For looking at it from the 6-pin side:
| 1 | Right | Orange |
| 2 | Up | Blue |
| 3 | Ground | Black |
| 4 | Down | Green |
| 5 | +5V | Red |
| 6 | Left | Brown |
It is important to note that the yellow clicker wire goes only to the clicker, while the black one first stops at the 6-pin plug and is then jumpered by a short length of black wire to the other terminal on the clicker button. So there are two black wires stuffed into the third pin on the plug.
Tastaturanschluß (Mac+)
| Pin | Name | Beschreibung & Anmerkungen |
|---|---|---|
| 1 | Ground | |
| 2 | KBD1 | Keyboard clock |
| 3 | KBD2 | Keyboard data |
| 4 | +5V | See Inside Macintosh for power limits < |
externer Floppyanschluß (Mac+)
| Pin | Name | Beschreibung & Anmerkungen |
|---|---|---|
| 1 | Ground | |
| 2 | Ground | |
| 3 | Ground | |
| 4 | Ground | |
| 5 | -12V | See Inside Macintosh for power limits |
| 6 | +5V | See Inside Macintosh for power limits |
| 7 | +12V | See Inside Macintosh for power limits |
| 8 | +12V | See Inside Macintosh for power limits |
| 10 | PWM | Regulates speed of the drive |
| 11 | PH0 | Control line to send commands to the drive |
| 12 | PH1 | Control line to send commands to the drive |
| 13 | PH2 | Control line to send commands to the drive |
| 14 | PH3 | Control line to send commands to the drive |
| 15 | WrReq- | Turns on the ability to write data to the drive |
| 16 | HdSel | Control line to send commands to the drive |
| 17 | Enbl2- | Enables the Rd line (else Rd is tri-stated) |
| 18 | Rd | Data actually read from the drive |
| 19 | Wr | Data actually written to the drive < |