HD6432160 RENESAS [Renesas Technology Corp], HD6432160 Datasheet - Page 150

• Manufacturer Part Number: HD6432160
• Description: Hitachi 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Rev. 2.0, 08/02, page 110 of 788
Break request
Break request
(1) When a break address specified instruction is executed for one state in the program area and on-chip memory
Break request
(2) When a break address specified instruction is executed for two states in the program area and on-chip memory
(3) When a break address specified instruction is executed for one state in the program area
Address bus
Address bus
Address bus
and external memory (2-state access, 16-bit bus access)
signal
signal
signal
H'0310 NOP
H'0312 MOV.W #xx:16,Rd
H'0316 NOP
H'0318 NOP
Instruction
Instruction
H'0310
H'0310
Instruction
fetch
fetch
H'0310 NOP
H'0312 NOP
H'0314 NOP
H'0316 NOP
fetch
H'0310
H'0310 NOP
H'0312 NOP
H'0314 NOP
H'0316 NOP
Figure 5.10 Address Break Timing Example
execution
execution
NOP
Instruction
Instruction
NOP
H'0312 H'0314 H'0316
H'0312 H'0314 H'0316
fetch
fetch
execution
execution
Instruction
Instruction
NOP
NOP
fetch
Instruction
fetch
execution
MOV.W
H'0312
fetch
Instruction
Instruction
Break point
execution
fetch
fetch
NOP
Break point
Break point
Instruction
Instruction
Instruction
fetch
fetch
fetch
H'0318
H'0318
H'0314
NOP instruction is executed at break point address
H'0312 and following address H'0314.
Fetching is performed from address H'0316
after exception handling ends.
operation
operation
Internal
NOP instruction is not executed at break point address H'0312.
Fetching is performed from address H'0312
after exception handling ends.
Internal
MOV instruction is executed at break point address
H'0312, and NOP instruction is not executed
at the following address H'0314.
Fetching is performed from address H'0316
after exception handling ends.
operation
Internal
Interrupt exception handling
Interrupt exception handling
Interrupt exception handling
SP-2
SP-2
to stack
to stack
Save
Save
SP-2
SP-4
SP-4
SP-4
Vector
Vector
fetch
fetch
H'0036
H'0036
Vector
fetch
H'0036
Internal
operation
Internal
operation
Instruction
Instruction
Instruction
fetch
fetch
fetch