Roberto Belletti

MCF5235 async /TA

Discussion created by Roberto Belletti on Oct 13, 2010
Latest reply on Oct 14, 2010 by Roberto Belletti

Hi all.

I'm developing a board using the external bus interface of a MCF5235 to connect with an external device (FPGA).

I plan to use external /TA signal to terminate the bus cycles when the external device is ready.

I have two questions: is it possibile to assert /TA asynchronously with respect to the bus clock ? There may be problems of metastability inside the chip, so /TA must be always synchronous with the bus clock ?

Thank you.