r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 184
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r5s77631ay266bgv
Manufacturer Part Number
r5s77631ay266bgv
Description
Renesas 32-bit Risc Microcomputer Superhtm Risc Engine Family Sh-4a Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R5S77631AY266BGV.pdf
(2026 pages)
- Current page: 184 of 2026
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Section 5 Exception Handling
5.6.2
(1)
• Source: Address mismatch in UTLB address comparison
• Transition address: VBR + H'00000400
• Transition operations:
Rev. 1.00 Oct. 01, 2007 Page 118 of 1956
REJ09B0256-0100
Data_TLB_miss_exception()
{
}
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.
The PC and SR contents for the instruction at which this exception occurred are saved in SPC
and SSR. The R15 contents at this time are saved in SGR.
Exception code H'040 (for a read access) or H'060 (for a write access) is set in EXPEVT. The
BL, MD, and RB bits are set to 1 in SR, and a branch is made to PC = VBR + H'0400.
To speed up TLB miss processing, the offset is separate from that of other exceptions.
Data TLB Miss Exception
TEA = EXCEPTION_ADDRESS;
PTEH.VPN = PAGE_NUMBER;
SPC = PC;
SSR = SR;
SGR = R15;
EXPEVT = read_access ? H'0000 0040 : H'0000 0060;
SR.MD = 1;
SR.RB = 1;
SR.BL = 1;
PC = VBR + H'0000 0400;
General Exceptions
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