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
5 S
UMMARY
OF
N
OTES
______________________________________ 152
5.1
Notes for Low Current Consumption .......................................................... 152
5.2
Summary of Notes by Function ................................................................... 153
5.3
Precautions on Mounting ........................................................................... 157
CHAPTER
6 B
ASIC
E
XTERNAL
W
IRING
D
IAGRAM
___________________________ 159
CHAPTER
7 E
LECTRICAL
C
HARACTERISTICS
_______________________________ 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
