Datasheet

Table Of Contents
Section 13 Serial Communication Interface
REJ09B0140-0900 Rev. 9.00 Page 453 of 846
Sep 16, 2010
H8S/2215 Group
D0 D1 D2 D3 D4 D5 D6 D7 Dp DE Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp
(DE)
Ds
D0 D1 D2 D3 D4Ds
Transfer
frame n + 1
Retransferred framenth transfer frame
TDRE
TEND
FER/ERS
Transfer to TSR from TDR Transfer to TSR from TDR
Transfer to TSR
from TDR
Figure 13.30 Retransfer Operation in SCI Transmit Mode
The timing for setting the TEND flag depends on the value of the GM bit in SMR. The TEND flag
set timing is shown in figure 13.31.
Ds D0 D1 D2 D3 D4 D5 D6 D7 DpI/O data
12.5 etu
TXI
(TEND interrupt)
11.0 etu
DE
Guard
time
When GM = 0
When GM = 1
Start bit
Data bits
Parity bit
Error signal
Legend:
Ds:
D0 to D7:
Dp:
DE:
Figure 13.31 TEND Flag Generation Timing in Transmission Operation