A - 4

15.

Serial Interface ............................................................................................................................ 207

15.1

Clock Synchronous Serial I/O Mode ..................................................................................................... 213

15.1.1

Polarity Select Function .................................................................................................................... 216

15.1.2

LSB First/MSB First Select Function ............................................................................................... 216

15.1.3

Continuous Receive Mode ................................................................................................................ 217

15.2

Clock Asynchronous Serial I/O (UART) Mode .................................................................................... 218

15.2.1

Bit Rate ............................................................................................................................................. 222

15.3

Notes on Serial Interface ....................................................................................................................... 223

16.

Hardware LIN .............................................................................................................................. 224

16.1

Features ................................................................................................................................................. 224

16.2

Input/Output Pins .................................................................................................................................. 225

16.3

Register Configuration .......................................................................................................................... 226

16.4

Functional Description .......................................................................................................................... 228

16.4.1

Master Mode ..................................................................................................................................... 228

16.4.2

Slave Mode ....................................................................................................................................... 231

16.4.3

Bus Collision Detection Function ..................................................................................................... 235

16.4.4

Hardware LIN End Processing ......................................................................................................... 236

16.5

Interrupt Requests .................................................................................................................................. 237

16.6

Notes on Hardware LIN ........................................................................................................................ 238

17.

A/D Converter ............................................................................................................................. 239

17.1

One-Shot Mode ..................................................................................................................................... 243

17.2

Repeat Mode .......................................................................................................................................... 246

17.3

Sample and Hold ................................................................................................................................... 249

17.4

A/D Conversion Cycles ......................................................................................................................... 249

17.5

Internal Equivalent Circuit of Analog Input .......................................................................................... 250

17.6

Output Impedance of Sensor under A/D Conversion ............................................................................ 251

17.7

Notes on A/D Converter ........................................................................................................................ 252

18.

D/A Converter ............................................................................................................................. 253

19.

Comparator ................................................................................................................................. 256

19.1

Overview ............................................................................................................................................... 256

19.2

Register Functions ................................................................................................................................. 258

19.3

Functional Description .......................................................................................................................... 260

19.3.1

Comparison Result Output ................................................................................................................ 261

19.3.2

Digital Filter ...................................................................................................................................... 262

19.4

Comparator 0 Interrupt and Comparator 1 Interrupt ............................................................................. 263

20.

Flash Memory Version ................................................................................................................ 264

20.1

Overview ............................................................................................................................................... 264

20.2

Memory Map ......................................................................................................................................... 265

20.3

Functions to Prevent Rewriting of Flash Memory ................................................................................ 267

20.3.1

ID Code Check Function .................................................................................................................. 267

20.3.2

ROM Code Protect Function ............................................................................................................ 268

20.4

CPU Rewrite Mode ............................................................................................................................... 269

20.4.1

EW0 Mode ........................................................................................................................................ 270

20.4.2

EW1 Mode ........................................................................................................................................ 270