D12320VF25IV Datasheet, PDF (699/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 15 Smart Card Interface
Section 15 Smart Card Interface
15.1 Overview
The SCI supports an IC card (smart card) interface conforming to ISO/IEC 7816-3 (identification
card) as a serial communication interface extension function.
Switching between the normal serial communication interface and the smart card interface is
carried out by means of a register setting.
15.1.1 Features
Features of the smart card interface supported by the chip is as follows.
• Asynchronous mode
⎯ Data length: 8 bits
⎯ Parity bit generation and checking
⎯ Transmission of error signal (parity error) in receive mode
⎯ Error signal detection and automatic data retransmission in transmit mode
⎯ Direct convention and inverse convention both supported
• Built-in baud rate generator allows any bit rate to be selected
• Three interrupt sources
⎯ Three interrupt sources (transmit-data-empty, receive-data-full, and transmit/receive-error)
that can issue requests independently
⎯ The transmit-data-empty and receive-data-full interrupts can activate the DMA controller
(DMAC)* or data transfer controller (DTC) to execute data transfer
Note: * The DMAC is not supported in the H8S/2321.
Rev.6.00 Sep. 27, 2007 Page 667 of 1268
REJ09B0220-0600