Hardware Reset - Renesas M16C FAMILY Hardware Manual

Under development
Preliminary specification
Specifications in this manual are tentative and subject to change.
R8C/11 Group

5.1.2 Hardware Reset 2

The microcomputer is reset when the voltage at the V
following conditions hold true.
• The VC27 bit in the VCR2 register is set to "1" (voltage detection circuit enabled)
• The D40 bit in the D4INT register is set to "1" (voltage detection interrupt enabled)
• The D46 bit in the D4INT register is set to "1" (hardware reset 2 when going through Vdet)
Conversely, when the input voltage at the V
initialized, and the program is executed starting from the address indicated by the reset vector. The
initialized pins and registers and the status thereof are the same as in hardware reset 1. Refer to
Section 5.4 "Voltage Detection Circuit."
Rev.0.91 2003 Sep 08 page 17 of 184
input pin drops below Vdet if all of the
CC
pin rises to Vdet or more, the pins, CPU, and SFR are
CC
5.1 Hardware Reset