EMI high and low Byte

[martinkorn]

Posted on October 19, 2006 at 15:33

EMI high and low Byte

[martinkorn]

Posted on May 17, 2011 at 09:32

Hi !

I have a problem with the high and low Byte Signals (Pin 21 and 22). While a write access they show a normal behavier ( EMI_BWR_WRLn goes low at low byte write access, EMI_WRHn goes low at high byte write access, both go low at a 16 bit write access ). But while reading none of the signals goes low. (neither at 8-bit nor at 16-bit read access). So my SRAM does not output data.

Somebody with a similar problem ?

[anis]

Posted on May 17, 2011 at 09:32

Hi,

EMI_WRHn and EMI_WRLn are only used for write access, when doing read access the EMI uses only EMI_RDn.

Best regards,

STARM

[tomas23]

Posted on May 17, 2011 at 09:32

Use AND gates for memory (eg. single-gate logic), Low# = RD# AND WRlow#, High# = RD# AND WRhigh#.

You can use spare FPGA if present in your design etc.