HD6432138SW datasheet(450/1061 Pages) RENESAS

450 / 1061 page

Section 15 Serial Communication Interface (SCI, IrDA)

Rev. 4.00 Jun 06, 2006 page 396 of 1004

REJ09B0301-0400

Bit 3—Stop Bit Length (STOP): Selects 1 or 2 bits as the stop bit length in asynchronous mode.

The STOP bit setting is only valid in asynchronous mode. If synchronous mode is set the STOP

bit setting is invalid since stop bits are not added.

Bit 3

STOP

Description

01 stop bit*

(Initial value)

2 stop bits*

Notes: 1. In transmission, a single 1 bit (stop bit) is added to the end of a transmit character

before it is sent.

2. In transmission, two 1 bits (stop bits) are added to the end of a transmit character

before it is sent.

In reception, only the first stop bit is checked, regardless of the STOP bit setting. If the second

stop bit is 1, it is treated as a stop bit; if it is 0, it is treated as the start bit of the next transmit

character.

Bit 2—Multiprocessor Mode (MP): Selects multiprocessor format. When multiprocessor format

is selected, the PE bit and O/

E bit parity settings are invalid. The MP bit setting is only valid in

asynchronous mode; it is invalid in synchronous mode.

For details of the multiprocessor communication function, see section 15.3.3, Multiprocessor

Communication Function.

Bit 2

Description

Multiprocessor function disabled

(Initial value)

Multiprocessor format selected

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