Posts: 147
Threads: 19
Joined: Aug 2007
christoph,
the reason why i was asking is as follows: *if* it would have been a simple bytewise "affair" it would have been easy to collect two nibbles from the bus in a single 8 bit latch and then write the data in one step into a bytewide RAM. however, if there is a nibble-wide piece of data to be stored in RAM, then one has to a) read 1 byte from RAM into latch, b)modify contents of latch with previously read nibble, c)write back byte in latch into RAM.
thus, the "1 nibble scenario" requires more process-cycles than the "always 1 byte scenario".
schade eigentlich. aber danke fuer die info!
best regards,
hans