3069RF-ZTAT Datasheet, PDF (552/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

If the TXI interrupt activates the DMAC, the number of bytes designated in the DMAC can be
transmitted automatically, including automatic retransmission.
For details, see Interrupt Operations and Data Transfer by DMAC in this section.
Serial data
Ds
(1) GM = 0
TEND
12.5 etu
Dp DE
Guard time
(2) GM = 1
TEND
11.0 etu
Figure 14.4 Timing of TEND Flag Setting
Rev. 5.0, 09/04, page 530 of 978