VR/W timing (split/OT from: Cheese and Onion)

[polluks]

Do you know the VIC that did not like Cheese and Onion?

http://blog.tynemouthsoftware.co.uk/202 ... onion.html

(mod: split from Cheese and Onion as this post is essentially related to hardware issues)

[Mike]

Do you know the VIC that did not like Cheese and Onion?

The improvement on the timing logic from 2-prong to DIN/CR had been covered in this thread here: "Anyone know what this board mod is?", to quote:

[...] On the 2-prong, the VR/W signal is simply disconnected from CR/W during VIC fetches, but it is not actively driven to H-level (i.e., read) as in the DIN variant. [...]

There's a pull-up for VR/W on the 2-prong mainboard, but it's rather weak.