Renesas R5S72621 User Manual

 

Section 18   Serial Sound Interface 

 

R01UH0134EJ0400  Rev. 4.00  

 

Page 915 of 2108 

Sep 24, 2014 

 

 

 
SH7262 Group, SH7264 Group 

16 TDE  1  R/(W)* 0: Number of data bytes for transmission in SSIFTDR is 

greater than the set transmit trigger number. 

[Clearing conditions] 

  0 is written to TDE after data of the number of bytes 

larger than the set transmit trigger number is written 

to SSIFTDR.  

  The direct memory access controller is activated by 

transmit data empty (TXI) interrupt, and data of the 

number of bytes larger than the set transmit trigger 

number is written to SSIFTDR.  

1: Number of data bytes for transmission in SSIFTDR is 

equal to or less than the set transmit trigger number. 
* 

[Setting conditions] 

  Power-on reset 
  Number of transmission data bytes to be stored in 

SSIFTDR has become equal to or less than the set 

transmit trigger number. 

Note: 1. Since SSIFTDR is an 8-stage FIFO register, 

the amount of data that can be written to it 
while TDE = 1 is "8 – transmit trigger number 
to be specified" bytes at maximum. Writing 
more data will be ignored. The number of data 
bytes in SSIFTDR is indicated in the TDC bits 
in SSIFSR. 

15 to 12 

 All 

0 

R 

Reserved 

These bits are always read as 0. The write value should 
always be 0. 

11 to 8 

RDC[3:0] 

0000 

R 

Number of Data Bytes Stored in SSIFRDR 

RDC[3:0] = H'0 indicates no received data.  
RDC[3:0] = H'8 indicates that 32 bytes of received data 
is stored in SSIFRDR. 

7 to 1 

 All 

0 

R 

Reserved 

This bit is always read as 0. The write value should 
always be 0.