D12320VF25IV Datasheet, PDF (720/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 15 Smart Card Interface
Start
Initialization
Start of transmission
No
ERS = 0?
Yes
No
TEND = 1?
Yes
Write data to TDR,
and clear TDRE flag
in SSR to 0
Error handling
No
All data transmitted?
Yes
No
ERS = 0?
Yes
No
TEND = 1?
Yes
Clear TE bit to 0
Error handling
End
Figure 15.4 Sample Transmission Flowchart
Rev.6.00 Sep. 27, 2007 Page 688 of 1268
REJ09B0220-0600