Renesas R5S72621 Manual Do Utilizador

 

Section 16   Renesas Serial Peripheral Interface 

 

R01UH0134EJ0400  Rev. 4.00  

 

Page 787 of 2108 

Sep 24, 2014 

 

 

 
SH7262 Group, SH7264 Group 

6 

TEND 1 

R Transmit 

End 

This bit is set to 1 when transmission is completed, 
and this bit is 0 when transmission is not completed.

[Clearing condition] 

  When transmit data are moved from the transmit 

register to the shift register. 

[Setting condition] 

  When the number of data units in the transmit 

buffer (SPTX) is zero when a serial transfer is 

completed. 

5 

SPTEF 

1 

R 

Transmit Buffer Empty Flag 

Indicates that the number of transmit data units in the 
transmit buffer (SPTX) is equal to or less than the 
transmit buffer data triggering number specified in 
the buffer control register (SPBFCR). 

0: The number of transmit data units in the transmit 

buffer is equal to or greater than the specified 
transmit buffer data triggering number.  

1: The number of transmit data units in the transmit 

buffer is less than the specified transmit buffer 
data triggering number. 

[Clearing condition] 

  When data is written to the transmit buffer until 

the number of transmit data units in the transmit 

buffer exceeds the specified transmit buffer data 

triggering number. 

[Setting conditions] 

  When the number of transmit data units in the 

transmit buffer is less than the specified transmit 

buffer data triggering number. 

  When transmit buffer data reset is enabled. 
  Power-on reset 

4, 3 

 All 

0 

R 

Reserved 

The write value should always be 0. Otherwise, 
operation cannot be guaranteed.