Renesas SH7781 User Manual

Page 133

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5. Exception Handling

Rev.1.00 Jan. 10, 2008 Page 103 of 1658

REJ09B0261-0100

(4)

Instruction TLB Multiple Hit Exception

• Source: Multiple ITLB address matches
• Transition address: H'A0000000
• Transition operations:

The virtual address (32 bits) at which this exception occurred is set in TEA, and the
corresponding virtual page number (22 bits) is set in PTEH [31:10]. ASID in PTEH indicates
the ASID when this exception occurred.

Exception code H'140 is set in EXPEVT, initialization of VBR and SR is performed, and a
branch is made to PC = H'A0000000.

CPU and on-chip peripheral module initialization is performed in the same way as in a manual
reset. For details, see the register descriptions in the relevant sections.

(5)

Data TLB Multiple-Hit Exception

• Source: Multiple UTLB address matches
• Transition address: H'A0000000
• Transition operations:

The virtual address (32 bits) at which this exception occurred is set in TEA, and the
corresponding virtual page number (22 bits) is set in PTEH [31:10]. ASID in PTEH indicates
the ASID when this exception occurred.

Exception code H'140 is set in EXPEVT, initialization of VBR and SR is performed, and a
branch is made to PC = H'A0000000.

CPU and on-chip peripheral module initialization is performed in the same way as in a manual
reset. For details, see the register descriptions in the relevant sections.

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