R5F2L36CANFA datasheet(21/848 Pages) RENESAS

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25.2.1

UART2 Transmit/Receive Mode Register (U2MR) ......................................................................... 517

25.2.2

UART2 Bit Rate Register (U2BRG) ................................................................................................ 517

25.2.3

UART2 Transmit Buffer Register (U2TB) ....................................................................................... 518

25.2.4

UART2 Transmit/Receive Control Register 0 (U2C0) .................................................................... 519

25.2.5

UART2 Transmit/Receive Control Register 1 (U2C1) .................................................................... 520

25.2.6

UART2 Receive Buffer Register (U2RB) ........................................................................................ 521

25.2.7

UART2 Digital Filter Function Select Register (URXDF) .............................................................. 522

25.2.8

UART2 Special Mode Register 5 (U2SMR5) .................................................................................. 522

25.2.9

UART2 Special Mode Register 4 (U2SMR4) .................................................................................. 523

25.2.10

UART2 Special Mode Register 3 (U2SMR3) .................................................................................. 523

25.2.11

UART2 Special Mode Register 2 (U2SMR2) .................................................................................. 524

25.2.12

UART2 Special Mode Register (U2SMR) ....................................................................................... 524

25.2.13

UART2 Pin Select Register 0 (U2SR0) ............................................................................................ 525

25.2.14

UART2 Pin Select Register 1 (U2SR1) ............................................................................................ 526

25.3

Clock Synchronous Serial I/O Mode ..................................................................................................... 527

25.3.1

Measure for Dealing with Communication Errors ........................................................................... 531

25.3.2

CLK Polarity Select Function ........................................................................................................... 531

25.3.3

LSB First/MSB First Select Function ............................................................................................... 532

25.3.4

Continuous Receive Mode ................................................................................................................ 532

25.3.5

Serial Data Logic Switching Function .............................................................................................. 533

25.3.6

CTS/RTS Function ............................................................................................................................ 534

25.4

Clock Asynchronous Serial I/O (UART) Mode .................................................................................... 535

25.4.1

Bit Rate ............................................................................................................................................. 539

25.4.2

Measure for Dealing with Communication Errors ........................................................................... 540

25.4.3

LSB First/MSB First Select Function ............................................................................................... 540

25.4.4

Serial Data Logic Switching Function .............................................................................................. 541

25.4.5

TXD and RXD I/O Polarity Inverse Function .................................................................................. 541

25.4.6

CTS/RTS Function ............................................................................................................................ 542

25.4.7

RXD2 Digital Filter Select Function ................................................................................................ 542

25.5

Special Mode 1 (I2C Mode) .................................................................................................................. 543

25.5.1

Detection of Start and Stop Conditions ............................................................................................ 549

25.5.2

Output of Start and Stop Conditions ................................................................................................. 550

25.5.3

Arbitration ......................................................................................................................................... 551

25.5.4

Transfer Clock .................................................................................................................................. 551

25.5.5

SDA Output ...................................................................................................................................... 551

25.5.6

SDA Input ......................................................................................................................................... 552

25.5.7

ACK and NACK ............................................................................................................................... 552

25.5.8

Initialization of Transmission/Reception .......................................................................................... 552

25.6

Multiprocessor Communication Function ............................................................................................. 553

25.6.1

Multiprocessor Transmission ............................................................................................................ 556

25.6.2

Multiprocessor Reception ................................................................................................................. 557

25.6.3

RXD2 Digital Filter Select Function ................................................................................................ 559

25.7

Notes on Serial Interface (UART2) ....................................................................................................... 560

25.7.1

Clock Synchronous Serial I/O Mode ................................................................................................ 560

25.7.2

Clock Asynchronous Serial I/O (UART) Mode ............................................................................... 561

25.7.3

Special Mode 1 (I2C Mode) .............................................................................................................. 561

26.

Clock Synchronous Serial Interface ............................................................................................ 562

26.1

Mode Selection ...................................................................................................................................... 562

R5F2L36CANFA Datasheet(PDF) 21 Page - Renesas Technology Corp

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