>Refreshing most 256k chips/simms, by the way, is exteremely simple. All >you have to do is flash CAS (or Ras? cant remembr) alone, and it'll >refresh the correct row, and update the counter accordingly (one that's >INCIDE the ram) It's been a while, but from memory if /CAS is low on the falling edge of /RAS, it will do an automatic refresh. This can be 'hidden' on normal accesses by keeping /CAS low after you've finished, then taking /RAS high, then low, then both high. The usual multitude of timing restrictions applies. Consult the data sheet if you're going to do either. John - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail firstname.lastname@example.org.
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