problem in interfacing msm6242b with at89c52

[mstechca]

Connect the WR' pin to the WR' pin of the 8051, the RD' pin to the RD' pin of the 8051, and enable the RTC. On memory, there is a CE' pin which must be grounded in order for the chip to be enabled.

 

[eblc1388]

sir,
thank you for helping me.
but in your code you are not doing anything with RD WR AND ALE pins...

I don't need to do anything because "the MCU is doing all that for me" when I use the MOVX A,@R0 instruction.

You have to study the 8051 datasheet and familiar yourself with how the MOVX instruction works.

The attached image would help you along.