> Does anyone know anything about the 8701 clock chip in the c64 and C128? > >From the schematics I can get a pinout, but no specifications on it's > operation. It seems strange that Commodore should make a custom chip with > 6 pins unused. It's probably a copy of something else. I have the C128 service manual (preliminary, August 1985 PN-314001-07), page 30 of which is about the 8701 Clock Generator. The pin assignment is as follows: NC 1 16 NC Vss 2 15 Vdd NC 3 14 XTL IN NC 4 13 XTL OUT RESET 5 12 Vdd phi DOT 6 11 NC /PAL 7 10 NC phi COLOR 8 9 Vss The sheet could be scanned in, but as it's a photocopy the quality would not be brilliant. Richard.
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