You should follow these instructions if you want to connect the cable directly onto the periphery chip in the drive.
On circuit diagrams, plugs are displayed as viewed from the back side, the solder side. Chips are displayed as viewed from above; also, see the small semicircular cut for finding the correct orientation. When in doubt, see the corresponding description on the legend page.
You need the following parts to build this cable:
One solderable user port plug
A shielded or unshielded 10-wire cable of, preferably, at most 2 meters
Step 1. Solder one end of the cable right onto the CIA periphery chip inside the drive.
Step 2. Solder the other end of the cable onto the user port plug. You should have the following connections:
|CIA||User port plug |
|10, PB0|| C, PB0 |
|11, PB1|| D, PB1 |
|12, PB2|| E, PB2 |
|13, PB3|| F, PB3 |
|14, PB4|| H, PB4 |
|15, PB5|| J, PB5 |
|16, PB6|| K, PB6 |
|17, PB7|| L, PB7 |
|24, FLAG|| 8, PC2 |
|18, PC|| B, FLAG2 |
|not connected|| A, GND |
You can find the description of all parts used on the diagrams at the legend page.
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