10.3.5 8-bit A/D conversion result register (ADCRH) ................................................................... 328
10.3.6 Analog input channel specification register (ADS) ............................................................. 329
10.3.7 A/D test register (ADTES) .................................................................................................. 330
10.3.8 Registers controlling port function of analog input pins ..................................................... 330
10.4 A/D Converter Conversion Operations ......................................................................................... 331
10.5 Input Voltage and Conversion Results ......................................................................................... 333
10.6 A/D Converter Operation Modes .................................................................................................. 335
10.7 A/D Converter Setup Flowchart .................................................................................................... 336
10.7.1 Setting up ANI0 to ANI10 for A/D conversion .................................................................... 336
10.7.2 Setting up the internal reference voltage for A/D conversion ............................................ 337
10.8 How to Read A/D Converter Characteristics Table ...................................................................... 338
10.8.1 Resolution .......................................................................................................................... 338
10.8.2 Overall error ....................................................................................................................... 338
10.8.3 Quantization error .............................................................................................................. 339
10.8.4 Zero-scale error .................................................................................................................. 339
10.8.5 Full-scale error ................................................................................................................... 339
10.8.6 Integral linearity error ......................................................................................................... 339
10.8.7 Differential linearity error .................................................................................................... 340
10.8.8 Conversion time ................................................................................................................. 341
10.8.9 Sampling time .................................................................................................................... 341
10.9 Notes on A/D Converter................................................................................................................ 342
10.9.1 Operating current in STOP mode ...................................................................................... 342
10.9.2 Input voltage on ANI0 to ANI10 pins .................................................................................. 342
10.9.3 Conflicting operations ........................................................................................................ 342
10.9.4 Noise countermeasures ..................................................................................................... 342
10.9.5 Analog input (ANIn) pins .................................................................................................... 343
10.9.6 Input impedance of analog input (ANIn) pins ..................................................................... 344
10.9.7 Interrupt request flag (ADIF) .............................................................................................. 344
10.9.8 Conversion results just after A/D conversion start ............................................................. 344
10.9.9 A/D conversion result register (ADCR, ADCRH) read operation ....................................... 344
10.9.10 Internal equivalent circuit ................................................................................................... 345
10.9.11 Starting the A/D converter .................................................................................................. 345
CHAPTER 11 COMPARATOR ...................................................................................... 346
11.1 Comparator Functions .................................................................................................................. 346
11.2 Comparator Configuration ............................................................................................................ 347
11.3 Registers Controlling the Comparator .......................................................................................... 349
11.3.1 Peripheral Enable Register 0 (PER0) ................................................................................ 350
11.3.2 Comparator Mode Setting Register (COMPMDR) ............................................................. 351
11.3.3 Comparator Filter Control Register (COMPFIR) ................................................................ 353
11.3.4 Comparator Output Control Register (COMPOCR) ........................................................... 355
11.3.5 Registers Controlling Port Functions of Comparator I/O Pins ........................................... 356
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