Table of Contents
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5.2
Register ...................................................................................................................................... 40
5.2.1
Protect Register (PRCR) ................................................................................................... 40
5.3
Notes on Protection .................................................................................................................... 42
6.
Resets........................................................................................................................ 43
6.1
Introduction ................................................................................................................................. 43
6.2
Registers..................................................................................................................................... 45
6.2.1
Processor Mode Register 0 (PM0) .................................................................................... 46
6.2.2
Reset Source Determine Register (RSTFR) ..................................................................... 47
6.3
Optional Function Select Area .................................................................................................... 48
6.3.1
Optional Function Select Address 1 (OFS1) ..................................................................... 48
6.4
Operations .................................................................................................................................. 50
6.4.1
Status after Reset .............................................................................................................. 50
6.4.2
Hardware Reset ................................................................................................................. 53
6.4.3
Power-On Reset Function ................................................................................................. 54
6.4.4
Voltage Monitor 0 Reset .................................................................................................... 55
6.4.5
Voltage Monitor 1 Reset .................................................................................................... 55
6.4.6
Voltage Monitor 2 Reset .................................................................................................... 55
6.4.7
Oscillator Stop Detect Reset .............................................................................................. 56
6.4.8
Watchdog Timer Reset ...................................................................................................... 56
6.4.9
Software Reset .................................................................................................................. 56
6.4.10
Cold/Warm Start Discrimination ......................................................................................... 57
6.5
Notes on Resets ......................................................................................................................... 58
6.5.1
Power Supply Rising Gradient ........................................................................................... 58
6.5.2
Power-On Reset ................................................................................................................ 58
6.5.3
OSDR Bit (Oscillation Stop Detect Reset Detect Flag) ...................................................... 59
7.
Voltage Detector ........................................................................................................ 60
7.1
Introduction ................................................................................................................................. 60
7.2
Registers..................................................................................................................................... 62
7.2.1
Voltage Detector 2 Flag Register (VCR1) .......................................................................... 63
7.2.2
Voltage Detector Operation Enable Register (VCR2) ........................................................ 64
7.2.3
Voltage Monitor Function Select Register (VWCE) ........................................................... 65
7.2.4
Voltage Detector 1 Level Select Register (VD1LS) ........................................................... 66
7.2.5
Voltage Monitor 0 Control Register (VW0C) ...................................................................... 67
7.2.6
Voltage Monitor 1 Control Register (VW1C) ...................................................................... 68
7.2.7
Voltage Monitor 2 Control Register (VW2C) ...................................................................... 70
7.3
Optional Function Select Area .................................................................................................... 72
7.3.1
Optional Function Select Address 1 (OFS1) ..................................................................... 72
7.4
Operations .................................................................................................................................. 73
7.4.1
Digital Filter ........................................................................................................................ 73
7.4.2
Voltage Detector 0 ............................................................................................................. 74
A - 2
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