Datasheet

Section 4 Address Break
Rev. 6.00 Mar. 24, 2006 Page 75 of 412
REJ09B0142-0600
When an address break is set to an instruction as a branch destination of a conditional branch
instruction, the instruction set when the condition of the branch instruction is not satisfied is not
executed, and an address break is generated. Therefore an address break must not be set to the
instruction as a branch destination of a conditional branch instruction.
BNE
instruction
prefetch
NOP
instruction
prefetch
MOV
instruction
prefetch
NOP
instruction
prefetch
[Register setting]
• ADBRKCR = H'80
• BAR = H'0150
[Program]
0134
0136
0138
0150
*
BNE
NOP
NOP
MOV.B
0134
Address bus
φ
Address break
interrupt request
0136 0150 0138
Interrupt acceptance
. . .
Figure 4.5 Operation when the Instruction Set is not Executed and does not Branch due to
Conditions not Being Satisfied