Hitachi H8S/2199 Hardware Manual page 466

Single-chip microcomputer
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<Reception>
Read RDRF flag in SSR1
RDRF= 1
Yes
Read receive data in RDR1
RE= 0
Transition to standby
mode, etc.
Exit from standby
mode, etc.
Change
operating mode?
Yes
Initialization
<Start of reception>
Figure 22.27 Sample Flowchart for Mode Transition during Reception
No
[1]
[2]
No
RE= 1
[1]
Receive data being received
becomes invalid.
Includes module stop mode,
[2]
watch mode, subactive mode,
and subsleep mode.
Rev. 1.0, 02/00, page 457 of 1141

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