SH7261 datasheet(944/1348 Pages) RENESAS

944 / 1348 page

Section 20 IEBus

TM Controller (IEB) [R5S72612] [R5S72613]

Rev. 2.00 Sep. 07, 2007 Page 912 of 1312

REJ09B0320-0200

Bit

Bit Name

Initial

Value

R/W

Description

LCK

Lock Status Indication

Set to 1 when a unit is locked by a lock request from

the master unit. IELA1 and IELA2 values are valid only

when this flag is set to 1.

0: A unit is unlocked

1: A unit is locked

[Setting condition]

• When data for the number of bytes specified by the

message length is not received after the control bits

that make the unit locked are received from the

master unit. (The LCK flag is set to 1 only when the

message length exceeds the maximum number of

transfer bytes in one frame. This flag is not set by

completion of other errors.)

[Clearing condition]

• When an unlock condition is satisfied or when an

unlock command is issued.



Reserved

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

always be 0.

RSS

Receive Broadcast Bit Status

Indicates the received broadcast bit value. This flag is

valid when the slave/broadcast reception is started.

(This flag is changed at the time of setting the RXS

flag.)

The previous value remains unchanged until the next

slave/broadcast reception is started.

0: Received broadcast bit is 0

1: Received broadcast bit is 1

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