Datasheet

Table Of Contents
Section 13 Serial Communication Interface
Page 456 of 846 REJ09B0140-0900 Rev. 9.00
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
RDRF
PER
Figure 13.33 Retransfer Operation in SCI Receive Mode
Initialization
Read RDR and clear
RDRF flag in SSR to 0
Clear RE bit to 0
Start reception
Start
Error processing
No
No
No
Yes
Yes
ORER = 0 and
PER = 0
RDRF = 1?
All data received?
Yes
Figure 13.34 Example of Reception Processing Flow