Graham Pratt

DDRs, config regs etc ever need to be refreshed?

Discussion created by Graham Pratt on May 12, 2011
Latest reply on May 15, 2011 by David Payne

So your micro starts up and runs for YEARS without ever restarting. On startup, various values are written to different config registers etc. What is the mechanism used to hold these values? Are they locked by a bistable flip flop or do they rely on a charge being retained in some miniscule capacitance and therefore perhaps bleed off over a long period of time, causing potentially unreliable operation? (No pun intended :robottongue: )