H8S2245 datasheet(520/818 Pages) RENESAS

520 / 818 page

Section 13 Smart Card Interface

Rev.3.00 Mar. 26, 2007 Page 478 of 772

REJ09B0355-0300

Bit 2

SINV

Description

TDR contents are transmitted as they are

(Initial value)

Receive data is stored as it is in RDR

TDR contents are inverted before being transmitted

Receive data is stored in inverted form in RDR

Bit 1—Reserved: Read-only bit, always read as 1.

Bit 0—Smart Card Interface Mode Select (SMIF): Enables or disables the Smart Card interface

function.

Bit 0

SMIF

Description

Smart Card interface function is disabled

(Initial value)

Smart Card interface function is enabled

13.2.2

Serial Status Register (SSR)

Bit

543210

TDRE

RDRF

ORER

ERS

PER

TEND

MPB

MPBT

Initial value :

000100

R/W

R/(W)*

R/W

Note:

Only 0 can be written to bits 7 to 3, to clear these flags.

Bit 4 of SSR has a different function in Smart Card interface mode. Coupled with this, the setting

conditions for bit 2, TEND, are also different.

Bits 7 to 5—Operate in the same way as for the normal SCI. For details, see section 12.2.7, Serial

Status Register (SSR).

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