r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 196
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
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Section 5 Exception Handling
(13) Pre-Execution User Break/Post-Execution User Break
• Source: Fulfilling of a break condition set in the user break controller
• Transition address: VBR + H'00000100, or DBR
• Transition operations:
Rev. 1.00 Oct. 01, 2007 Page 130 of 1956
REJ09B0256-0100
User_break_exception()
{
}
In the case of a post-execution break, the PC contents for the instruction following the
instruction at which the breakpoint is set are set in SPC. In the case of a pre-execution break,
the PC contents for the instruction at which the breakpoint is set are set in SPC.
The SR and R15 contents when the break occurred are saved in SSR and SGR. Exception code
H'1E0 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'0100. It is
also possible to branch to PC = DBR.
For details of PC, etc., when a data break is set, see section 41, User Break Controller (UBC).
SPC = (pre_execution break? PC : PC + 2);
SSR = SR;
SGR = R15;
EXPEVT = H'0000 01E0;
SR.MD = 1;
SR.RB = 1;
SR.BL = 1;
PC = (BRCR.UBDE==1 ? DBR : VBR + H'0000 0100);
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