Que: Tpr on serial bus diagram

Date: 2004-04-26 07:53:41


while experimenting with the serial bus and having a look at the C64
PRG and a serial bus doc that came along with VICE, I noticed Tpr,
mentioned in both texts but nowhere to be seen on the timing
diagrams. According to the tables in these docs, it stands for
BYTE-ACKNOWLEDGE, but I can't see it fitting anywhere. It's supposed
to be important if an external device is a talker (min 20us, typ

Any ideas what this Tpr is and where should it be on the C64 PRG diagram?

Thank you all in advance.

Best wishes,


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