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PDF R5F2121AKFP Data sheet ( Hoja de datos )

Número de pieza R5F2121AKFP
Descripción MCU
Fabricantes Renesas 
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REJ09B0250-0200
16
R8C/20 ,Group R8C/21 Group
Hardware Manual
RENESAS MCU
R8C FAMILY / R8C/2x SERIES
All information contained in these materials, including products and product specifications,
represents information on the product at the time of publication and is subject to change by
Renesas Technology Corp. without notice. Please review the latest information published
by Renesas Technology Corp. through various means, including the Renesas Technology
Corp. website (http://www.renesas.com).
Rev.2.00
Revision Date: Aug 27, 2008
www.renesas.com

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R5F2121AKFP pdf
2. Notation of Numbers and Symbols
The notation conventions for register names, bit names, numbers, and symbols used in this manual are described
below.
(1) Register Names, Bit Names, and Pin Names
Registers, bits, and pins are referred to in the text by symbols. The symbol is accompanied by the word
“register,” “bit,” or “pin” to distinguish the three categories.
Examples the PM03 bit in the PM0 register
P3_5 pin, VCC pin
(2) Notation of Numbers
The indication “b” is appended to numeric values given in binary format. However, nothing is appended to the
values of single bits. The indication “h” is appended to numeric values given in hexadecimal format. Nothing
is appended to numeric values given in decimal format.
Examples Binary: 11b
Hexadecimal: EFA0h
Decimal: 1234

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R5F2121AKFP arduino
14.4.1 Output Compare Mode ..................................................................................................................... 258
14.4.2 Notes on Timer RE ........................................................................................................................... 264
15. Serial Interface ............................................................................................................................ 265
15.1 Clock Synchronous Serial I/O Mode ..................................................................................................... 271
15.1.1 Polarity Select Function .................................................................................................................... 274
15.1.2 LSB First/MSB First Select Function ............................................................................................... 274
15.1.3 Continuous Receive Mode ................................................................................................................ 275
15.2 Clock Asynchronous Serial I/O (UART) Mode .................................................................................... 276
15.2.1 Bit Rate ............................................................................................................................................. 280
15.3 Notes on Serial Interface ....................................................................................................................... 281
16. Clock Synchronous Serial Interface ............................................................................................ 282
16.1 Mode Selection ...................................................................................................................................... 282
16.2 Clock Synchronous Serial I/O with Chip Select (SSU) ........................................................................ 283
16.2.1 Transfer Clock .................................................................................................................................. 292
16.2.2 SS Shift Register (SSTRSR) ............................................................................................................. 294
16.2.3 Interrupt Requests ............................................................................................................................. 295
16.2.4 Communication Modes and Pin Functions ....................................................................................... 296
16.2.5 Clock Synchronous Communication Mode ...................................................................................... 297
16.2.6 Operation in 4-Wire Bus Communication Mode .............................................................................. 304
16.2.7 SCS Pin Control and Arbitration ...................................................................................................... 310
16.2.8 Notes on Clock Synchronous Serial I/O with Chip Select ............................................................... 311
16.3 I2C Bus Interface ................................................................................................................................... 312
16.3.1 Transfer Clock .................................................................................................................................. 322
16.3.2 Interrupt Requests ............................................................................................................................. 323
16.3.3 I2C Bus Interface Mode .................................................................................................................... 324
16.3.4 Clock Synchronous Serial Mode ...................................................................................................... 335
16.3.5 Noise Canceller ................................................................................................................................. 338
16.3.6 Bit Synchronization Circuit .............................................................................................................. 339
16.3.7 Examples of Register Setting ............................................................................................................ 340
16.3.8 Notes on I2C Bus Interface ............................................................................................................... 344
17. Hardware LIN .............................................................................................................................. 345
17.1 Features ................................................................................................................................................. 345
17.2 Input/Output Pins .................................................................................................................................. 346
17.3 Register Configuration .......................................................................................................................... 347
17.4 Functional Description .......................................................................................................................... 349
17.4.1 Master Mode ..................................................................................................................................... 349
17.4.2 Slave Mode ....................................................................................................................................... 352
17.4.3 Bus Collision Detection Function ..................................................................................................... 356
17.4.4 Hardware LIN End Processing ......................................................................................................... 357
17.5 Interrupt Requests .................................................................................................................................. 358
17.6 Notes on Hardware LIN ........................................................................................................................ 359
18. A/D Converter ............................................................................................................................. 360
18.1 One-Shot Mode ..................................................................................................................................... 364
18.2 Repeat Mode .......................................................................................................................................... 367
18.3 Sample and Hold ................................................................................................................................... 370
A-4

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