SH7721 datasheet(1049/1524 Pages) RENESAS

1049 / 1524 page

Section 30

SIM Card Module (SIM)

SCIS000A_0000200110000

Rev. 3.00 Jan. 18, 2008 Page 987 of 1458

REJ09B0033-0300

Section 30

SIM Card Module (SIM)

The smart card interface supports IC cards (smart cards) conforming to the ISO/IEC 7816-3

(Identification Card) specification.

30.1

Features

• Communication functions

Asynchronous half-duplex transmission

Protocol selectable between T = 0 and T = 1 modes

Data length: 8 bits

Parity bit generation and check

Selectable character protection addition time

Selectable output clock cycles per etu

Transmission of error signal (parity error) in receive mode when T = 0

Detection of error signal and automatic character retransmission in transmit mode when T = 0

Selectable minimum character interval of 11 etus (N = 255) when T = 1 (etu: Elementary Time

Unit)

Selectable direct convention/inverse convention

Output clock can be fixed in high or low state

• Freely selectable bit rate by on-chip baud rate generator

• Four types of interrupt source

Transmit data empty, receive data full, transmit/receive error, transmit complete

• DMA transfer

Through DMA transfer requests for transmit data empty and receive data full, the direct

memory access controller (DMAC) can be started and used for data transfer.

• The time waiting for the operation when T = 0, and the time waiting for a character when T = 1

can be observed.

SH7721 Datasheet(PDF) 1049 Page - Renesas Technology Corp