SH7727 Datasheet, PDF (630/1109 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7700 Series

Section 18 Smart Card Interface
Start
Initialize
(1)
Start transmission
FER/ERS = 0?
Yes
(2)
No
No
TEND = 1?
(3)
Yes
Write transmit data in SCTDR
and clear TDRE
(4)
flag in SCSSR to 0
No
All data transmitted?
Yes
FER/ERS = 0?
Yes
No
TEND = 1?
(5)
No
Yes
Clear TE bit in SCSCR to 0
(6)
Error processing
Error processing
End transmission
Note: Numbers refer to the preceding procedure.
Figure 18.6 Transmission Flowchart (Example)
Rev. 5.00 Dec 12, 2005 page 558 of 1034
REJ09B0254-0500