D12320VF25V Datasheet, PDF (553/1146 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 13 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 13.4 Sample Transmission Flowchart
Rev.7.00 Feb. 14, 2007 page 519 of 1108
REJ09B0089-0700