3819 Group USER’S MANUAL
iii
Table of contents
2.5 FLD controller .......................................................................................................................109
2.5.1 Related registers ............................................................................................................109
2.5.2 FLD controller application examples ..............................................................................115
2.6 Interrupt interval determination function .........................................................................139
2.6.1 Related registers ............................................................................................................139
2.6.2 Interrupt interval determination function .........................................................................142
2.7 Zero cross detection circuit...............................................................................................147
2.7.1 Related registers ............................................................................................................147
2.7.2 Connection example of Zero cross detection circuit.......................................................149
2.7.3 Zero cross detection circuit application example 1.........................................................150
2.7.4 Zero cross detection circuit application example 2.........................................................152
2.8 Reset .......................................................................................................................................154
2.8.1 Connection example of reset IC .....................................................................................154
2.9 Clock generating circuit......................................................................................................155
2.9.1 Related registers ...........................................................................................................155
2.9.2 Clock generating circuit application examples ..............................................................160
CHAPTER 3. APPENDIX
3.1 Notes on use ........................................................................................................................170
3.1.1 Notes on interrupts .........................................................................................................170
3.1.2 Notes on the FLD controller and the serial I/O automatic transfer function....................170
3.1.3 Notes on the A-D converter ............................................................................................170
3.1.4 Notes on the RESET pin ................................................................................................171
3.1.5 Notes on input and output pins.......................................................................................171
3.1.6 Notes on clock synchronous serial I/O ...........................................................................172
3.1.7 Notes on built-in PROM..................................................................................................173
3.2 Countermeasures against noise ........................................................................................174
3.2.1 Shortest wiring length .....................................................................................................174
3.2.2 Connection of a bypass capacitor across the V
SS
line and the V
CC
line ........................175
3.2.3 Wiring to analog input pins .............................................................................................176
3.2.4 Oscillator concerns .........................................................................................................176
3.2.5 Setup for I/O ports ..........................................................................................................177
3.2.6 Providing of watchdog timer function by software ..........................................................177
3.3 Control registers...................................................................................................................179
3.4 Mask ROM ordering method..............................................................................................196
3.5 Mark specification form ......................................................................................................198
3.6 Package outline ....................................................................................................................199
3.7 Memory map..........................................................................................................................200
3.8 Pin configuration ..................................................................................................................201