Renesas Asynchronous SH7145F User Manual download pdf (Page 14)

SH7145F

Asynchronous Serial Data Transmission

REJ06B0355-0100O/Rev.1.00 March 2004 Page 12 of 16

(3) Data Transfer Routine

No

Yes

Write transmit data to TDR_1

Clear TDRE flag in SSR_1 to 0

Wait until

possible to write

to TDR_1

RTE

trans_sci()

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