HD6432138SW datasheet(174/1061 Pages) RENESAS

174 / 1061 page

Section 5 Interrupt Controller

Rev. 4.00 Jun 06, 2006 page 120 of 1004

REJ09B0301-0400

Instruction

fetch

NOP

execution

NOP

execution

NOP

execution

Interrupt exception handling

Instruction

fetch

Instruction

fetch

Instruction

fetch

Instruction

fetch

Internal

operation

Stack save

Vector

fetch

Internal

operation

Instruction

fetch

H'0310

H'0312

H'0314

H'0316

H'0318

SP-2

SP-4

H'0036

H'0310 NOP

H'0312 NOP

H'0314 NOP

H'0316 NOP

Breakpoint

NOP instruction is executed at breakpoint address H'0312 and

next address, H'0314; fetch from address H'0316 starts after

end of exception handling.

Instruction

fetch

NOP

execution

MOV.W

execution

Interrupt exception handling

Instruction

fetch

Instruction

fetch

Instruction

fetch

Instruction

fetch

Internal

operation

Stack save

Vector

fetch

Internal

operation

Instruction

fetch

H'0310

H'0312

H'0314

H'0316

H'0318

SP-2

SP-4

H'0036

H'0310 NOP

H'0312 MOV.W

H'0316 NOP

H'0318 NOP

Breakpoint

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.

#xx:16,Rd

Instruction

fetch

NOP

execution

Interrupt exception handling

Instruction

fetch

Instruction

fetch

Internal

operation

Stack save

Vector

fetch

Internal

operation

H'0310

H'0312

H'0314

SP-2

SP-4

H'0036

H'0310 NOP

H'0312 NOP

H'0314 NOP

H'0316 NOP

Breakpoint

NOP instruction at breakpoint address H'0312 is not executed;

fetch from address H'0312 starts after end of exception handling.

Address bus

Break request

signal

Address bus

Break request

signal

Address bus

Break request

signal

• 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

Figure 5.6 Examples of Address Break Timing

HD6432138SW Datasheet(PDF) 174 Page - Renesas Technology Corp

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