r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 1348

• Manufacturer Part Number: r5s77631ay266bgv
• Description: Renesas 32-bit Risc Microcomputer Superhtm Risc Engine Family Sh-4a Series
• Manufacturer: Renesas Electronics Corporation.

Section 30 SIM Card Module (SIM)
(5)
An example of pin connections for the smart card interface is shown in figure 30.11.
In communication with the smart card, transmission and reception are performed using a single
data transmit line. The data transmit line should be pulled up by a resistance on the power supply
V
When using the clock generated by the smart card interface with the IC card, the SIM_CLK pin
output is input to the CLK pin of the IC card. If an internal clock of the IC card is used, this
connection is not needed.
Note: The transmission/reception in loop can perform self-check when the RE and TE bits are
(6)
In continuous transmission, when the TEIE bit is always set to 1, the TEND bit is set to 1 at a
transmit end. Therefore, the unnecessary transmit end interrupt (TEI) request occurs.
When SCTSR starts transmitting after the last transmit data is written to SCTDR, the TEIE bit in
SCSCR should be set to 1 so that the occurrence of the unnecessary TEI interrupt request can be
prevented.
Rev. 1.00 Oct. 01, 2007 Page 1282 of 1956
REJ09B0256-0100
Note: For details, refer to ISO/IEC7816-3.
cc
side.
Pin Connections
Transmit End Interrupt
set to 1 without connecting to the IC card.
Figure 30.11 Example of Pin Connections in Smart Card Interface
Smrat card
interface
This LSI
SIM_D
SIM_CLK
SIM_RST
Data line
Clock line
Reset line
20 kW
I/O
CLK
RST
Smart card