HD6413008VF25 Datasheet, PDF (438/688 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

13. Smart Card Interface
H8/3008
chip
TxD
RxD
SCK
Px (port)
Card-processing device
V_CC
Data line
Clock line
Reset line
I/O
CLK
RST
Smart card
Figure 13.2 Smart Card Interface Connection Diagram
Note: Setting both TE and RE to 1 without connecting a smart card enables closed
transmission/reception, allowing self-diagnosis to be carried out.
13.3.3 Data Format
Figure 13.3 shows the smart card interface data format. In reception in this mode, a parity check is
carried out on each frame, and if an error is detected an error signal is sent back to the transmitting
device to request retransmission of the data. In transmission, the error signal is sampled and the
same data is retransmitted.
Rev.4.00 Aug. 20, 2007 Page 392 of 638
REJ09B0395-0400