SH7132

FAQs

1. How to write to the internal flash memory with the MCU in boot mode?

   Please check the following points.      ・Power-on reset is correct. ‐Reset signal is cleared after the oscillation is stabilized at the time of power-on. ‐The hardware stand-by pin (HSTBY) is not switched to Low at power-on if your MCU has a stand-by function.                  ・The mode pin ...

   Sep 9, 2011
2. Is fractional portion 0.5 cycle equivalent to standard value 1/2tcyc?

   2 cycles are added to the Th when 10:2.5 cycle is set to the SW[1:0] bit, and 2 cycles are added to the Tf  when 10:2.5 cycle is set to the HW[1:0] bit. As you mentioned.

   Sep 11, 2012
3. Is it vital to clear module standby of peripheral to use after power-on?

   Yes, it is necessary to do so. After power-on reset, most of peripheral modules are in module standby state (clock is not supplied to modules). So, you must clear the module standby of peripheral modules to use at first.

   Mar 17, 2011