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(3) Data Receive Routine
(4) Data Transfer Routine
REJ06B0357-0100O/Rev.1.00
Asynchronous Serial Data Transmission/Reception
rcv_sci()
Wait until
RDR_1 finishes receiving
data
Yes
Read receive data from RDR_1 and
store it in on-chip RAM
Clear RDRF flag in SSR_1 to 0
Transmit receive data without
modification
RTE
trans_sci()
Wait until
possible to write to
TDR_1
Yes
Write transmit data to TDR_1
Clear TDRE bit in SSR_1 to 0
RTE
March 2004
No
No
SH7145F
Page 13 of 17
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