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2 general exceptions – Renesas SH7641 User Manual

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Section 9 Exception Handling

Rev. 4.00 Sep. 14, 2005 Page 206 of 982

REJ09B0023-0400

Table 9.2

Type of Reset

Internal state

Type Condition

to

reset CPU

On-chip peripheral module

Power-on reset

RESETP = Low level

Manual reset

RESETM = Low level

H-UDI reset

H-UDI reset command entry

Initialization Refer to the register

configurations in the relevant
sections.

9.3.2 General

Exceptions

CPU address error:

• Conditions

 Instruction is fetched from odd address (4n + 1, 4n + 3)
 Word data is accessed from addresses other than word boundaries (4n + 1, 4n + 3)
 Long word is accessed from addresses other than longword boundaries (4n + 1, 4n + 2,

4n + 3)

 The area ranging from H'80000000 to H'FFFFFFFF in logical space is accessed in user

mode

• Types

Instruction synchronous, re-execution type

• Save address

Instruction fetch: An instruction address to be fetched when an exception occurred

Data access: An instruction address where an exception occurs (a delayed branch instruction
address if an instruction is assigned to a delay slot)

• Exception code

An exception occurred during read: H'0E0

An exception occurred during write: H'1E0

• Remarks

None

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