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Renesas SH7641 User Manual

Page 300

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Section 11 User Break Controller (UBC)

Rev. 4.00 Sep. 14, 2005 Page 250 of 982

REJ09B0023-0400

Bit Bit

Name

Initial
Value R/W Description

5

4

IDB1

IDB0

0

0

R/W

R/W

Instruction Fetch/Data Access Select B

Select the instruction fetch cycle or data access cycle
as the bus cycle of the channel B break condition.

00: Condition comparison is not performed

01: The break condition is the instruction fetch cycle

10: The break condition is the data access cycle

11: The break condition is the instruction fetch cycle or

data access cycle

3

2

RWB1

RWB0

0

0

R/W

R/W

Read/Write Select B

Select the read cycle or write cycle as the bus cycle of
the channel B break condition.

00: Condition comparison is not performed

01: The break condition is the read cycle

10: The break condition is the write cycle

11: The break condition is the read cycle or write cycle

1

0

SZB1

SZB0

0

0

R/W

R/W

Operand Size Select B

Select the operand size of the bus cycle for the
channel B break condition.

00: The break condition does not include operand size

01: The break condition is byte access

10: The break condition is word access

11: The break condition is longword access

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