RX610 Group
20. Serial Communications Interface (SCI)
R01UH0032EJ0120 Rev.1.20
Page 660 of 1006
Feb 20, 2013
20.5
Operation in Smart Card Interface Mode
The SCI supports the smart card (IC card) interface conforming to the ISO/IEC 7816-3 (Identification Card) standard, as
an extended function of the SCI.
Smart card interface mode can be selected using the appropriate register.
20.5.1
Sample Connection
Figure 20.20 shows a sample connection between the smart card (IC card) and this LSI.
As in the figure, since this LSI communicates with the IC card using a single transmission line, interconnect the TxDn
and RxDn pins and pull up the data transmission line to Vcc using a resistor.
Setting the TE and RE bits in SCR to 1 with the IC card disconnected enables closed transmission/reception allowing self
diagnosis.
To supply the IC card with the clock pulses generated by the SCI, input the SCKn pin output to the CLK pin of the IC
card.
The output port of this LSI can be used to output a reset signal.
TxDn
RxDn
This LSI
Vcc
I/O
Main unit of the device to
be connected
IC card
Data line
CLK
RST
SCKn
Port
Clock line
Reset line
Figure 20.20 Sample Connection with a Smart Card (IC Card)
Summary of Contents for RX600 Series
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