Chip incompatibility?

From: Daniele Gratteri (
Date: 2002-09-06 21:36:00

Hello, do you know if the GTE G65SC22 if 100% compatible with the MOS 6522
VIA? I used to have one of these in my VIC-20 but today I have noticed that
I cannot change the cursor color to white (CTRL-2) and that I can change it
to black (CTRL-1) with some difficulty. But, for the other operations, it
seems to be 100% ok.
Maybe the problem is that the G65SC22 is a CMOS device and it hasn't some
portions the original NMOS 6522 had or it is simply a defective chip?
      __                                                  ____
     /// Daniele Gratteri, Italian Commodore-Amiga user  / ___|____
__  /// E-MAIL:   RITMO S75  | |   |___/
\\\/// Nickname: FIAT1100D - ICQ: 53943994    FOREVER!  | |___|___\
 \/// URL: \____|

       Message was sent through the cbm-hackers mailing list

Archive generated by hypermail 2.1.4.