r5f71374an80fpv Renesas Electronics Corporation., r5f71374an80fpv Datasheet - Page 113

• Manufacturer Part Number: r5f71374an80fpv
• Description: 32-bit Risc Microcomputer Superh?? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

5.6
When an exception other than resets occurs during decoding the instruction placed in a delay slot
or immediately after an interrupt disabled instruction, it may not be accepted and be held shown in
table 5.10. In this case, when an instruction which accepts an interrupt request is decoded, the
exception is accepted.
Table 5.10 Delay Slot Instructions, Interrupt Disabled Instructions, and Exceptions
[Legend]
√:
×:
:
Notes: 1. Interrupt disabled instructions: LDC, LDC.L, STC, STC.L, LDS, LDS.L, STS, and STS.L
Occurrence Timing
Instruction in delay slot
Immediately after interrupt
disabled instruction*
Accepted
Not accepted
Does not occur
2. An exception is accepted before the execution of a delayed branch instruction.
3. An exception is accepted after a delayed branch (between instructions in the delay slot
4. An exception is accepted after the execution of the next instruction of an interrupt
Cases when Exceptions are Accepted
However, when an address error or a slot illegal instruction exception occurs in the
delay slot of the RTE instruction, correct operation is not guaranteed.
and the branch destination).
disabled instruction (before the execution two instructions after an interrupt disabled
instruction).
1
Address
Error
×*
√
2
General
Illegal
Instruction

√
Slot Illegal
Instruction
×*
√
Exception
2
Rev. 1.00 Sep. 21, 2007 Page 87 of 1124
Section 5 Exception Handling
Trap
Instruction

√
REJ09B0402-0100
Interrupt
×*
×*
3
4