SH7721 datasheet(665/1524 Pages) RENESAS

665 / 1524 page

Section 18

Serial Communication Interface with FIFO (SCIF)

Rev. 3.00 Jan. 18, 2008 Page 603 of 1458

REJ09B0033-0300

Bit

Bit Name Initial Value

R/W

Description

BRK

R/(W)* Break Detection

Indicates that a break signal is detected in received

data in asynchronous mode.

0: No break signal is being received

[Clearing conditions]

• Power-on reset, manual reset

• BRK is read as 1, then written to with 0

1: A break signal is received *

[Setting conditions]

Data including a framing error is received

• A framing error with space 0 occurs in the

subsequent received data

Note:

When a break is detected, transfer of the

received data (H'00) to SCFRDR stops

after detection. When the break ends and

the receive signal becomes mark 1, the

transfer of the received data resumes.

FER

Framing Error

Indicates a framing error in the data read from the

receive FIFO data register (SCFRDR) in

asynchronous mode.

0: No framing error occurred in the data read from

SCFRDR

[Clearing conditions]

• Power-on reset, manual reset

• No framing error is present in the data read from

SCFRDR

1: A framing error occurred in the data read from

SCFRDR

[Setting condition]

• A framing error is present in the data read from

SCFRDR

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