h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 497

• Manufacturer Part Number: h8s-2158
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

16.7
The SCI supports the IC card (smart card) interface based on the ISO/IEC 7816-3 (Identification
Card) standard as an enhanced serial communication interface function. Smart card interface mode
can be selected using the appropriate register.
16.7.1
Figure 16.24 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 VCC using a resistor. Setting the RE
and TE bits in SCR 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.
Smart Card Interface Description
Sample Connection
Figure 16.24 Pin Connection for Smart Card Interface
Main unit of the device
to be connected
Rx (port)
This LSI
Section 16 Serial Communication Interface (SCI, IrDA, and CRC)
SCK
RxD
TxD
Reset line
Clock line
Data line
VCC
Rev. 3.00 Jan 25, 2006 page 445 of 872
I/O
CLK
RST
IC card
REJ09B0286-0300