32196 datasheet(13/1044 Pages) RENESAS

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Contents-7

32192/32195/32196 Group Hardware Manual

Rev.1.10 REJ09B0123-0110 Apr.06.07

CHAPTER 12 SERIAL INTERFACE

12.1 Outline of Serial Interface ----------------------------------------------------------------------------------------------- 12-2

12.2 Serial Interface Related Registers ------------------------------------------------------------------------------------ 12-5

12.2.1

SIO Interrupt Related Registers ----------------------------------------------------------------------------- 12-6

12.2.2

SIO Transmit Control Registers ----------------------------------------------------------------------------- 12-14

12.2.3

SIO Transmit/Receive Mode Registers -------------------------------------------------------------------- 12-15

12.2.4

SIO Transmit Buffer Registers ------------------------------------------------------------------------------- 12-19

12.2.5

SIO Receive Buffer Registers -------------------------------------------------------------------------------- 12-20

12.2.6

SIO Receive Control Registers ------------------------------------------------------------------------------ 12-21

12.2.7

SIO Baud Rate Registers ------------------------------------------------------------------------------------- 12-24

12.2.8

SIO Special Mode Registers --------------------------------------------------------------------------------- 12-27

12.3 Transmit Operation in CSIO Mode ----------------------------------------------------------------------------------- 12-29

12.3.1

Setting the CSIO Baud Rate --------------------------------------------------------------------------------- 12-29

12.3.2

Initializing CSIO Transmission ------------------------------------------------------------------------------- 12-30

12.3.3

Starting CSIO Transmission ---------------------------------------------------------------------------------- 12-32

12.3.4

Successive CSIO Transmission ----------------------------------------------------------------------------- 12-32

12.3.5

Processing at End of CSIO Transmission ----------------------------------------------------------------- 12-33

12.3.6

Transmit Interrupts ---------------------------------------------------------------------------------------------- 12-33

12.3.7

Transmit DMA Transfer Request ---------------------------------------------------------------------------- 12-33

12.3.8

Example of CSIO Transmit Operation ---------------------------------------------------------------------- 12-35

12.4 Receive Operation in CSIO Mode ------------------------------------------------------------------------------------- 12-37

12.4.1

Initialization for CSIO Reception ----------------------------------------------------------------------------- 12-37

12.4.2

Starting CSIO Reception -------------------------------------------------------------------------------------- 12-39

12.4.3

Processing at End of CSIO Reception --------------------------------------------------------------------- 12-39

12.4.4

About Successive Reception -------------------------------------------------------------------------------- 12-40

12.4.5

Flags Showing the Status of CSIO Receive Operation ------------------------------------------------- 12-41

12.4.6

Example of CSIO Receive Operation ----------------------------------------------------------------------- 12-42

12.5 Notes on Using CSIO Mode ------------------------------------------------------------------------------------------- 12-44

12.6 Transmit Operation in UART Mode ----------------------------------------------------------------------------------- 12-46

12.6.1

Setting the UART Baud Rate -------------------------------------------------------------------------------- 12-46

12.6.2

UART Transmit/Receive Data Formats -------------------------------------------------------------------- 12-46

12.6.3

Initializing UART Transmission ------------------------------------------------------------------------------ 12-48

12.6.4

Starting UART Transmission --------------------------------------------------------------------------------- 12-50

12.6.5

Successive UART Transmission ---------------------------------------------------------------------------- 12-50

12.6.6

Processing at End of UART Transmission ---------------------------------------------------------------- 12-50

12.6.7

Transmit Interrupts --------------------------------------------------------------------------------------------- 12-50

12.6.8

Transmit DMA Transfer Request ---------------------------------------------------------------------------- 12-51

12.6.9

Example of UART Transmit Operation --------------------------------------------------------------------- 12-52

12.7 Receive Operation in UART Mode ------------------------------------------------------------------------------------ 12-54

12.7.1

Initialization for UART Reception ---------------------------------------------------------------------------- 12-54

12.7.2

Starting UART Reception ------------------------------------------------------------------------------------- 12-56

12.7.3

Processing at End of UART Reception -------------------------------------------------------------------- 12-56

12.7.4

Example of UART Receive Operation ---------------------------------------------------------------------- 12-58

12.7.5

Start Bit Detection and Data Sampling during UART Reception ------------------------------------- 12-60

12.8 Fixed Period Clock Output Function --------------------------------------------------------------------------------- 12-61

12.9 Notes on Using UART Mode ------------------------------------------------------------------------------------------- 12-62

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