SH7014 datasheet(344/754 Pages) RENESAS

344 / 754 page

12. Serial Communication Interface (SCI)

Rev.5.00 Sep. 27, 2007 Page 310 of 716

REJ09B0398-0500

Bit 7

⎯Communication Mode (C/A): Selects whether the SCI operates in the asynchronous or

clock synchronous mode.

Bit 7

Description

Asynchronous mode

(initial value)

Clocked synchronous mode

Bit 6

⎯Character Length (CHR): Selects 7-bit or 8-bit data in the asynchronous mode. In the

clock synchronous mode, the data length is always eight bits, regardless of the CHR setting.

Bit 6

CHR

Description

Eight-bit data

(initial value)

Seven-bit data*

Note:

When 7-bit data is selected, the MSB (bit 7) of the transmit data register is not

transmitted.

Bit 5

⎯Parity Enable (PE): Selects whether to add a parity bit to transmit data and to check the

parity of receive data, in the asynchronous mode. In the clock synchronous mode, a parity bit is

neither added nor checked, regardless of the PE setting.

Bit 5

Description

Parity bit not added or checked

(initial value)

Parity bit added and checked*

Note:

When PE is set to 1, an even or odd parity bit is added to transmit data, depending on

the parity mode (O/

E) setting. Receive data parity is checked according to the even/odd

(O/

E) mode setting.

SH7014 Datasheet(PDF) 344 Page - Renesas Technology Corp