Renesas SH7641 Manuel D’Utilisation
Section 11 User Break Controller (UBC)
Rev. 4.00 Sep. 14, 2005 Page 253 of 982
REJ09B0023-0400
Bit Bit
Name
Initial
Value R/W
Value R/W
Description
6
PCBB
0
R/W
PC Break Select B
Selects the break timing of the instruction fetch cycle
for channel B as before or after instruction execution.
for channel B as before or after instruction execution.
0: PC break of channel B is set before instruction
execution
1: PC break of channel B is set after instruction
execution
5, 4
All
0
R
Reserved
These bits are always read as 0. The write value
should always be 0.
should always be 0.
3
SEQ
0
R/W
Sequence Condition Select
Selects two conditions of channels A and B as
independent or sequential conditions.
independent or sequential conditions.
0: Channels A and B are compared under independent
conditions
1: Channels A and B are compared under sequential
conditions (channel A, then channel B)
2, 1
All
0
R
Reserved
These bits are always read as 0. The write value
should always be 0.
should always be 0.
0
ETBE
0
R/W
Number of Execution Times Break Enable
Enables the execution-times break condition only on
channel B. If this bit is 1 (break enable), a user break is
issued when the number of break conditions matches
with the number of execution times that is specified by
BETR.
channel B. If this bit is 1 (break enable), a user break is
issued when the number of break conditions matches
with the number of execution times that is specified by
BETR.
0: The execution-times break condition is disabled on
channel B
1: The execution-times break condition is enabled on
channel B