SH7261 datasheet(946/1348 Pages) RENESAS

946 / 1348 page

Section 20 IEBus

TM Controller (IEB) [R5S72612] [R5S72613]

Rev. 2.00 Sep. 07, 2007 Page 914 of 1312

REJ09B0320-0200

Bit

Bit Name

Initial

Value

R/W

Description

TXS

R/(W)*

Transmit Start

Indicates that the IEB starts transmission.

[Setting condition]

• During master transmission, the arbitration is won

and the master address field transmission is

completed

[Clearing condition]

• When 1 is written

TXF

R/(W)*

Transmit Normal Completion

Indicates that data for the number of bytes specified by

the message length bits has been transmitted with no

error.

[Setting condition]

• When data for the number of bytes specified by the

message length bits has been transmitted normally

[Clearing condition]

• When 1 is written



Reserved

This bit is always read as 0. The write value should

always be 0.

TXEAL

R/(W)*

Arbitration Loss

The IEB retransmits from the start bit for the number of

times specified by the RN bit in IEMCR if the arbitration

has been lost in master communications. If the

arbitration has been lost for the specified number of

times, the TXEAL is set to enter the wait state. If the

arbitration has been won within retransmit for the

specified number of times, this flag is not set to 1. This

flag is set only when the arbitration has been lost and

the wait state is entered.

[Setting condition]

• When the arbitration has been lost during data

transmission and the transmission has been

terminated

[Clearing condition]

• When 1 is written

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