SH7261 datasheet(942/1348 Pages) RENESAS

942 / 1348 page

Section 20 IEBus

TM Controller (IEB) [R5S72612] [R5S72613]

Rev. 2.00 Sep. 07, 2007 Page 910 of 1312

REJ09B0320-0200

20.3.15

IEBus General Flag Register (IEFLG)

IEFLG indicates the IEB command execution status, lock status and slave address match, and

broadcast reception detection.

IEFLG is initialized by a power-on reset or in deep standby.

76543210

Bit:

Initial value:

R/W:

00000000

RRRRRRRR

CMX MRQ SRQ

SRE

LCK

—

RSS

Bit

Bit Name

Initial

Value

R/W

Description

CMX

Command Execution Status

Indicates the command execution status.

0: Command execution is completed

1: A command is being executed

[Setting condition]

• When a master communications request or slave

transmit request command is issued while the

MRQ, SRQ, or SRE flag is set

[Clearing condition]

• When a command execution has been completed

MRQ

Master Communications Request

Indicates whether the unit is in the communications

request state as a master unit.

0: The unit is not in the communications request state

as a master unit

1: The unit is in the communications request state as a

master unit

[Setting condition]

• When the CMX flag is cleared to 0 after the master

communications request command is issued

[Clearing condition]

• When the master communications have been

completed

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