HD64F2636F20 Datasheet, PDF (560/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Section 13 Serial Communication Interface (SCI)
<Reception>
Read RDRF flag in SSR
RDRF = 1
No [1]
Yes
Read receive data in RDR
H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
[1] Receive data being received
becomes invalid.
RE = 0
Transition to software
standby mode, etc.
Exit from software
standby mode, etc.
[2]
[2] Includes module stop mode, watch
mode, subactive mode, and
subsleep mode.
Change
operating mode?
Yes
Initialization
No
RE = 1
<Start of reception>
Figure 13-26 Sample Flowchart for Mode Transition during Reception
Page 510 of 1458
REJ09B0103-0800 Rev. 8.00
May 28, 2010