The DRAM used in a BBC Micro needs a 2ms refresh. The DRAM in later machines needs a 4ms refresh IIRC
The HM4816 datasheet is here![:wink:]( "Wink")
Given the data rate required for a video line (each line takes 64 microseconds) I don't think you need to worry.
Mark
The HM4816 datasheet is here
Given the data rate required for a video line (each line takes 64 microseconds) I don't think you need to worry.
Mark
Statistics: Posted by 1024MAK — Sun Apr 06, 2025 9:45 am