Figure 8.9 Operation Flow Of Sci Reception - Renesas H8S/2158 User Manual

Initialize the RFU
Initialize the SCI
Set RDRF_DTE in SCIDTER to 1
Set RE in SCR to 1
Start reception
RDRF = 1
Yes
RFU activation request
Overwrite RAM?
Yes
RDRF_DTE in SCIDTER are
automatically cleared to 0
End

Figure 8.9 Operation Flow of SCI Reception

Section 8 RAM-FIFO Unit (RFU)
No
No
Transfer receive data from RDR to RAM
Rev. 3.00 Jan 25, 2006 page 199 of 872
REJ09B0286-0300