SH7730 Datasheet, PDF (895/1188 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7780 Series

Initialization
Start reception
Section 25 SIM Card Module (SIM)
(a)
Are PER, ORER,
and WAIT_ER all 0s?
No (b)
Yes
No
RDRF=1?
Error processing
(c)
Yes
Read received data from SCRDR
(d)
No
All data received?
(e)
Yes
Set the WECC bit in SCSCMR.
Clear the RE bit in SCSCR to 0
(f)
Receive end
Figure 25.6 Example of Receive Processing
(4) Switching Modes
When switching from receive mode to transmit mode, after confirming that reception has been
completed, start initialization, and then clear the RE bit to 0 and set the TE bit to 1. Completion of
reception can be confirmed through the RDRF flag.
When switching from transmit mode to receive mode, after confirming that transmission has been
completed, start initialization, and then clear the TE bit to 0 and set the RE bit to 1. Completion of
transmission can be confirmed through the TDRE and TEND flags.
Rev. 1.00 Sep. 19, 2007 Page 847 of 1136
REJ09B0359-0100