SH7713 datasheet(595/904 Pages) RENESAS

595 / 904 page

Section 16 Serial Communication Interface with FIFO (SCIF)

Rev.1.50 Aug. 30, 2006 Page 555 of 860

REJ09B0288-0150

Bit

Bit Name

Initial

Value

R/W

Description

RTRG1

RTRG0

R/W

Receive FIFO Data Number Trigger 1 and 0

Set the number of receive data bytes that sets the

RDF flag in SCFSR.

The RDF flag is set when the number of receive data

bytes in SCFRDR is equal to or greater than the

trigger set number shown in below.

Asynchronous mode

Clock synchronous mode

00: 1

01: 4

01: 2

10: 8

11: 14

TTRG1

TTRG0

R/W

Transmit FIFO Data Number Trigger 1 and 0

Set the number of remaining transmit data bytes that

sets the TDFE flag in SCFSR.

The TDFE flag is set when, as the result of a transmit

operation, the number of transmit data bytes in

SCFTDR is equal to or below the trigger set number

shown in below.

00: 8 (8)

01: 4 (12)

10: 2 (14)

11: 0 (16)

Note:

The values in parentheses are the number of

empty bytes in SCFTDR when the flag is set.

MCE

R/W

Modem Control Enable

Enables modem control signals

CTS and RTS. This

bit is valid only in asynchronous mode.

0: Modem signal disabled*

1: Modem signal enabled

Note: *

CTS is fixed at active 0 regardless of the input

value, and

RTS is also fixed at 0.

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