h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 174

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 5 Interrupt Controller
Rev. 4.00 Jun 06, 2006 page 120 of 1004
REJ09B0301-0400
• Program area in on-chip memory, 1-state execution instruction at specified break address
• Program area in on-chip memory, 2-state execution instruction at specified break address
• Program area in external memory (2-state access, 16-bit-bus access),
1-state execution instruction at specified break address
Address bus
Break request
signal
Address bus
Break request
signal
Address bus
Break request
signal
Instruction
Instruction
fetch
H'0310 NOP
H'0312 MOV.W
H'0316 NOP
H'0318 NOP
fetch
H'0310
H'0310
Instruction
H'0310 NOP
H'0312 NOP
H'0314 NOP
H'0316 NOP
H'0310
fetch
H'0310 NOP
H'0312 NOP
H'0314 NOP
H'0316 NOP
Instruction
execution
Figure 5.6 Examples of Address Break Timing
Instruction
execution
fetch
NOP
H'0312
fetch
H'0312
NOP
Instruction
execution
#xx:16,Rd
Instruction
execution
fetch
NOP
H'0314
NOP
fetch
H'0314
Instruction
execution
fetch
MOV.W
H'0312
Instruction
execution
Breakpoint
Instruction
fetch
NOP
H'0316
fetch
H'0316
Breakpoint
Instruction
fetch
Instruction
Breakpoint
Instruction
fetch
NOP instruction at breakpoint address H'0312 is not executed;
fetch from address H'0312 starts after end of exception handling.
fetch
H'0318
operation
next address, H'0314; fetch from address H'0316 starts after
end of exception handling.
H'0318
Internal
NOP instruction is executed at breakpoint address H'0312 and
H'0314
operation
Internal
MOV instruction is executed at breakpoint address H'0312,
NOP instruction at next address, H'0316, is not executed;
fetch from address H'0316 starts after end of exception handling.
operation
Internal
SP-2
Interrupt exception handling
Stack save
Interrupt exception handling
SP-2
Stack save
Interrupt exception handling
SP-2
SP-4
Stack save
SP-4
Vector
fetch
SP-4
Vector
fetch
H'0036
operation
Internal
H'0036
operation
Internal
Vector
H'0036
fetch
Instruction
fetch
Instruction
fetch
operation
Internal