R29 datasheet(14/473 Pages) RENESAS

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18.

A/D Converter ............................................................................................................................. 328

18.1

One-Shot Mode ..................................................................................................................................... 332

18.2

Repeat Mode .......................................................................................................................................... 334

18.3

Sample and Hold ................................................................................................................................... 336

18.4

A/D Conversion Cycles ......................................................................................................................... 336

18.5

Internal Equivalent Circuit of Analog Input .......................................................................................... 337

18.6

Output Impedance of Sensor under A/D Conversion ............................................................................ 338

18.7

Notes on A/D Converter ........................................................................................................................ 339

19.

Flash Memory ............................................................................................................................. 340

19.1

Overview ............................................................................................................................................... 340

19.2

Memory Map ......................................................................................................................................... 341

19.3

Functions to Prevent Rewriting of Flash Memory ................................................................................ 343

19.3.1

ID Code Check Function .................................................................................................................. 343

19.3.2

ROM Code Protect Function ............................................................................................................ 344

19.4

CPU Rewrite Mode ............................................................................................................................... 345

19.4.1

EW0 Mode ........................................................................................................................................ 346

19.4.2

EW1 Mode ........................................................................................................................................ 346

19.4.3

Software Commands ......................................................................................................................... 355

19.4.4

Status Registers ................................................................................................................................. 360

19.4.5

Full Status Check .............................................................................................................................. 361

19.5

Standard Serial I/O Mode ...................................................................................................................... 363

19.5.1

ID Code Check Function .................................................................................................................. 363

19.6

Parallel I/O Mode .................................................................................................................................. 366

19.6.1

ROM Code Protect Function ............................................................................................................ 366

19.7

Notes on Flash Memory ........................................................................................................................ 367

19.7.1

CPU Rewrite Mode ........................................................................................................................... 367

20.

Electrical Characteristics ............................................................................................................ 370

20.1

N, D Version .......................................................................................................................................... 370

20.2

J, K Version ........................................................................................................................................... 395

21.

Usage Notes ............................................................................................................................... 415

21.1

Notes on Clock Generation Circuit ....................................................................................................... 415

21.1.1

Stop Mode ......................................................................................................................................... 415

21.1.2

Wait Mode ........................................................................................................................................ 415

21.1.3

Oscillation Stop Detection Function ................................................................................................. 415

21.1.4

Oscillation Circuit Constants ............................................................................................................ 415

21.2

Notes on Interrupts ................................................................................................................................ 416

21.2.1

Reading Address 00000h .................................................................................................................. 416

21.2.2

SP Setting .......................................................................................................................................... 416

21.2.3

External Interrupt and Key Input Interrupt ....................................................................................... 416

21.2.4

Changing Interrupt Sources .............................................................................................................. 417

21.2.5

Changing Interrupt Control Register Contents ................................................................................. 418

21.3

Notes on Timers .................................................................................................................................... 419

21.3.1

Notes on TImer RA ........................................................................................................................... 419

21.3.2

Notes on Timer RB ........................................................................................................................... 420

21.3.3

Notes on Timer RC ........................................................................................................................... 424

21.3.4

Notes on Timer RE ........................................................................................................................... 425

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