R01UH0822EJ0100 Rev.1.00
Page 675 of 1041
Jul 31, 2019
RX13T Group
23. Serial Communications Interface (SCIg, SCIh)
When transmitting/receiving data using the DTC, be sure to make settings to enable the DTC before making SCI settings.
For DTC settings, refer to
section 16, Data Transfer Controller (DTCb)
Note that the SSR.TEND flag is set in different timings depending on the GM bit setting in the SMR register.
shows the TEND flag generation timing.
Figure 23.41
SSR.TEND Flag Generation Timing during Transmission
Ds
D0
D1
D2
D3
D4
D5
D6
D7
Dp
I/O data
12.5 etu (11.5 etu in block transfer mode)
SSR.TEND flag
(TXI interrupt)
11.0 etu
DE
Guard
time
When GM bit in SMR = 0
Ds:
Start bit
D0 to D7: Data bits
Dp:
Parity bit
DE:
Error signal
When GM bit in SMR = 1