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FSMC in multiplexed mode

planeetmaa
Associate II
Posted on February 19, 2009 at 12:07

FSMC in multiplexed mode

1 REPLY 1
planeetmaa
Associate II
Posted on May 17, 2011 at 13:03

Hi!

I have question about FSMC controller. Im planning to use it in multiplexed mode to communicate to memories. I have STM103 in 144 pin package, but need the pins elsewhere.

The question is: If I configure memory interface according to ''mode muxed- asynchronous access to muxed NOR flash'' in reference manual (with the help of D-latch), does the controller allow 8 bit access to 16 bit wide memory? I mean if I connect 16 bit SRAM in that mode, does the controller use NBL0 and NBL1 signals? At least they are not shown in timing diagram in that mode... Or can I specify memory type as SRAM and enable address multiplexing in FSMC_BCRx register (this kind of timing diagram is missing, at least)?

Thank you,

Madis