Renesas R5S72622 Manual De Usuario

 

Section 16   Renesas Serial Peripheral Interface 

 

R01UH0134EJ0400  Rev. 4.00  

 

Page 843 of 2108 

Sep 24, 2014 

 

 

 
SH7262 Group, SH7264 Group 

Figure 16.19 is a flowchart illustrating an example of initialization in SPI operation when this 
module is used in slave mode. For a description of how to set up the interrupt controller, direct 
memory access controller, and input/output ports, see the descriptions given in the individual 
blocks. 

• Sets access width.

Set the pin control register 

(SPPCR)

Set the slave select polarity 

register (SSLP)

Set the data control

register (SPDCR)

Set the direct memory 

access controller

Set the control register 

(SPCR)

Set interrupt controller

Start of intialization in 

slave mode

End of intialization in 

slave mode

• Sets polarity of SSL input signal

• Sets clock polarity.

• Sets slave mode.

• Sets mode fault error detection.

• Sets interrupt mask.

(when using an interrupt)

(when using the direct memory access controller)

• Sets clock phase.

• Sets data length.

• Sets MSB or LSB first.

Set the command register 0 

(SPCMD0)