r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 940

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 15 Serial Communication Interface (SCI, IrDA)
Rev. 1.00 Sep. 19, 2008 Page 910 of 1342
REJ09B0467-0100
Read receive data in RDR
Read RDRF flag in SSR
Transition to software
<Start of reception>
Exit from software
operating mode?
standby mode
standby mode
Yes
Yes
<Reception>
Initialization
Figure 15.39 Sample Flowchart for Mode Transition during Reception
RDRF = 1
Change
RE = 0
No
No
[1]
[2]
RE = 1
[1] Receive data being received
[2] Includes module stop mode.
becomes invalid.