Reset At Power-On; Reset During Operation; Reset Vector Relocation During Flash Rewrite - Mitsubishi Electric M32R Series User Manual

Mitsubishi 32-bit risc single-chip microcomputers

Table of Contents

7.1 Outline of Reset

The device is reset by applying a low-level signal to the RESET input pin. The device is gotten out

of a reset state by releasing the RESET input back high, upon which the reset vector entry address

is set in the Program Counter (PC) and the program starts executing from the reset vector entry.

7.2 Reset Operation

7.2.1 Reset at Power-on

When powering on the device, hold the RESET input low until its internal multiply-by-4 clock

generator becomes oscillating stably.

To reset the device during operation, hold the RESET input low for more than four clock periods of

When placed in boot mode, the reset vector entry address is moved to the start address of the boot

program space (address H'8000 0000). For details, refer to Section 6.5, "Programming of Internal

Flash Memory."

7.1 Outline of Reset