Operation In Smart Card Interface Mode; Sample Connection; Figure 12.21 Pin Connection For Smart Card Interface - Renesas H8SX/1500 Series Hardware Manual

12.7

Operation in Smart Card Interface Mode

The SCI supports the IC card (smart card) interface, conforming to ISO/IEC 7816-3 (Identification
Card) standard, as an extended serial communication interface function. Smart card interface
mode can be selected using the appropriate register.
12.7.1

Sample Connection

Figure 12.21 shows a sample connection between the smart card and this LSI. As in the figure,
since this LSI communicates with the IC card using a single transmission line, interconnect the
TxD and RxD pins and pull up the data transmission line to V
and TE bits to 1 with the IC card not connected enables closed transmission/reception allowing
self diagnosis. To supply the IC card with the clock pulses generated by the SCI, input the SCK
pin output to the CLK pin of the IC card. A reset signal can be supplied via the output port of this
LSI.

Figure 12.21 Pin Connection for Smart Card Interface

TxD
RxD
SCK
Rx (port)
This LSI
Main unit of the device
to be connected
Section 12 Serial Communication Interface (SCI)
using a resistor. Setting the RE
CC
V
CC
I/O
Data line
CLK
Clock line
RST
Reset line
Rev. 3.00 Mar. 14, 2006 Page 429 of 804
IC card
REJ09B0104-0300