H8SSLASH2225 datasheet(606/1071 Pages) RENESAS

606 / 1071 page

Section 14 IEBus™ Controller (IEB) [H8S/2258 Group]

Rev. 5.00 Aug 08, 2006 page 520 of 982

REJ09B0054-0500

Bit

Bit Name

Initial

Value

R/W

Description

TTME

R/W

Timing Error

Set to 1 if data is not transmitted at the timing specified by

the IEBus protocol during data transmission. The IEB sets

the TxE flag and enters the wait state.

[Setting condition]

When a timing error occurs during data transmission

[Clearing condition]

When writing 0 after reading TTME = 1

R/W

Overflow of Maximum Number of Transmit Bytes in One

Frame

Indicates that the maximum number of bytes defined by

communications mode have been transmitted because a

NAK has been received from the receive unit and

retransmit has been performed, or that transmission has

not been completed because the message length value

exceeds the maximum number of transmit bytes in one

frame. The IEB sets the TxE flag and enters the wait state.

[Setting condition]

When the transmit has not been completed although the

maximum number of bytes defined by communications

mode have been transmitted

[Clearing condition]

When writing 0 after reading RO = 1

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