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Does the CS signal change from "H" → "L" → "H" with every access?

Latest Updated:03/08/2012

Question:

The CS signal timing is specified by td(BCLK-CS) max. value and th(BCLK-CS) min. value. When the MCU accesses the same memory device continuously, for example, does the CS signal change from "H" → "L" → "H" with every access?

Answer:

The CS signal is generated by decoding address bus signals. Therefore, as long as the address bus signals in the same CS area are output continuously, the CS signal will output "L" continuously.
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