S1C63656 TECHNICAL MANUAL
EPSON
iii
CONTENTS
4.12 Sound Generator .......................................................................................... 96
4.12.1 Configuration of sound generator .......................................................... 96
4.12.2 Control of buzzer output .......................................................................... 96
4.12.3 Setting of buzzer frequency and sound level ........................................... 97
4.12.4 Digital envelope ...................................................................................... 98
4.12.5 One-shot output ....................................................................................... 99
4.12.6 I/O memory of sound generator ............................................................. 100
4.12.7 Programming notes ................................................................................ 102
4.13 Integer Multiplier ........................................................................................ 103
4.13.1 Configuration of integer multiplier ........................................................ 103
4.13.2 Multiplication mode ............................................................................... 103
4.13.3 Division mode ......................................................................................... 104
4.13.4 Execution cycle ....................................................................................... 105
4.13.5 I/O memory of integer multiplier ........................................................... 106
4.13.6 Programming note .................................................................................. 107
4.14 R/f Converter ............................................................................................... 108
4.14.1 Configuration of R/f converter ............................................................... 108
4.14.2 Connection terminals and CR oscillation circuit .................................. 109
4.14.3 Operation of R/f conversion ................................................................... 112
4.14.4 Interrupt function ................................................................................... 115
4.14.5 I/O memory of R/f converter .................................................................. 117
4.14.6 Programming notes ................................................................................ 120
4.15 Stepping Motor Driver ................................................................................ 121
4.15.1 Configuration of stepping motor driver ................................................. 121
4.15.2 Setting up the motor-drive pulse ............................................................ 122
4.15.3 Pulse output control ............................................................................... 123
4.15.4 Interrupt function ................................................................................... 123
4.15.5 I/O memory of stepping motor driver .................................................... 124
4.15.6 Programming notes ................................................................................ 127
4.16 SVD (Supply Voltage Detection) Circuit ..................................................... 128
4.16.1 Configuration of SVD circuit ................................................................. 128
4.16.2 SVD operation ........................................................................................ 128
4.16.3 I/O memory of SVD circuit ..................................................................... 129
4.16.4 Programming notes ................................................................................ 130
4.17 Interrupt and HALT .................................................................................... 131
4.17.1 Interrupt factor ....................................................................................... 133
4.17.2 Interrupt mask ........................................................................................ 134
4.17.3 Interrupt vector ...................................................................................... 134
4.17.4 I/O memory of interrupt ......................................................................... 135
4.17.5 Programming notes ................................................................................ 137
CHAPTER
5 S
UMMARY
OF
N
OTES
______________________________________ 138
5.1
Notes for Low Current Consumption .......................................................... 138
5.2
Summary of Notes by Function ................................................................... 139
5.3
Precautions on Mounting ........................................................................... 143
CHAPTER
6 B
ASIC
E
XTERNAL
W
IRING
D
IAGRAM
___________________________ 145
CHAPTER
7 E
LECTRICAL
C
HARACTERISTICS
_______________________________ 146
7.1
Absolute Maximum Rating .......................................................................... 146
7.2
Recommended Operating Conditions ......................................................... 146
7.3
DC Characteristics ..................................................................................... 146