From: Baltissen, GJPAA (Ruud) (ruud.baltissen_at_abp.nl)
Date: 2005-02-04 10:11:13
Hallo Hatch,
> Any chance that you can remember what control lines you were
> using for /CS or /WR ?
Yep, I used two 6264's, 8K*8 SRAMs:
- /WR was connected to the R/W line of the expansion port
- CS1 was +5V
- both /CS2 and /OE: IO2 AND '(inverted) registerbit'
A 273 was clocked by IO1 through an inverter (04). Outputs D0..D4 went to
A8..12 of the two SRAMs, D5 was the registerbit. A inverter provided the
signal for the second SRAM.
--
___
/ __|__
/ / |_/ Groetjes, Ruud
\ \__|_\
\___| URL: Ruud.C64.org
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