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Could you tell me about the timing settings of FWP pins and mode pins?

Latest Updated:03/23/2009

Question:

In the SH7144/SH7046/SH7047 series, could you tell me about the timing settings of FWP pins and mode pins (MD0 to MD3) when the MCU operation mode is changed.

Answer:

The MD3 to MD0 setup time (tMDS) at mode setting is 20tcyc or more to RES rise. This is just as for FWP pin.

For mode change at programming and erasing and power on/off timing of flash memory, please follow the usage notes and the section for flash memory programming and erasing on the chapter of flash memory of hardware manual for each product.

Suitable Products
SH7144, SH7145
SH7047, SH7049, SH7105, SH7107, SH7109
SH7046, SH7148, SH7101, SH7048, SH7104, SH7106, SH7108