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S1C63558 TECHNICAL MANUAL EPSON iii
CONTENTS
4.12.3 Control of buzzer output......................................................................... 101
4.12.4 Setting of buzzer frequency and sound level.......................................... 102
4.12.5 Digital envelope ..................................................................................... 103
4.12.6 One-shot output ...................................................................................... 104
4.12.7 I/O memory of sound generator............................................................. 105
4.12.8 Programming notes ................................................................................ 108
4.13 SVD (Supply Voltage Detection) Circuit ....................................................109
4.13.1 Configuration of SVD circuit ................................................................. 109
4.13.2 Mask option ............................................................................................ 109
4.13.3 SVD operation ........................................................................................ 109
4.13.4 I/O memory of SVD circuit..................................................................... 110
4.13.5 Programming notes ................................................................................ 111
4.14 Telephone Function (Tone/Pulse Dialer) ................................................... 112
4.14.1 Configuration of tone/pulse dialer ........................................................ 112
4.14.2 Mask option ............................................................................................ 113
4.14.3 Operation of telephone function ............................................................ 113
4.14.4 Tone mode (DTMF) ................................................................................ 116
4.14.5 Pulse mode (DP) .................................................................................... 119
4.14.6 Pause ...................................................................................................... 122
4.14.7 Flash ....................................................................................................... 124
4.14.8 Hold-line................................................................................................. 125
4.14.9 Interrupt.................................................................................................. 126
4.14.10 I/O memory of telephone function ....................................................... 127
4.14.11 Programming notes .............................................................................. 135
4.15 FSK Demodulator ....................................................................................... 136
4.15.1 Configuration of FSK demodulator ....................................................... 136
4.15.2 Mask option ............................................................................................ 138
4.15.3 Ring/carrier detection and interrupt ..................................................... 139
4.15.4 Inputting FSK data................................................................................. 140
4.15.5 I/O memory of FSK demodulator .......................................................... 142
4.15.6 Programming notes ................................................................................ 144
4.16 Interrupt and HALT .................................................................................... 145
4.16.1 Interrupt factor....................................................................................... 147
4.16.2 Interrupt mask ........................................................................................ 148
4.16.3 Interrupt vector ...................................................................................... 148
4.16.4 I/O memory of interrupt ......................................................................... 149
4.16.5 Programming notes ................................................................................ 151
CHAPTER 5SUMMARY OF NOTES ______________________________________ 152
5.1 Notes for Low Current Consumption..........................................................152
5.2 Summary of Notes by Function...................................................................153
5.3 Precautions on Mounting ........................................................................... 157
CHAPTER 6BASIC EXTERNAL WIRING DIAGRAM ___________________________ 159
CHAPTER 7ELECTRICAL CHARACTERISTICS _______________________________ 160
7.1 Absolute Maximum Rating.......................................................................... 160
7.2 Recommended Operating Conditions......................................................... 160
7.3 DC Characteristics ..................................................................................... 161
7.4 Analog Circuit Characteristics and Power Current Consumption............ 162
7.5 Oscillation Characteristics......................................................................... 163
7.6 Serial Interface (1), (2) AC Characteristics............................................... 164
7.7 FSK Demodulator Characteristics ............................................................. 165