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HD6417751RBP240V Datasheet, PDF (917/1226 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents | |||
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20. User Break Controller (UBC)
Exception/interrupt
generation
Hardware operation
SPC â PC
SSR â SR
SR.BL â B'1
SR.MD â B'1
SR.RB â B'1
Exception
EXPEVT â exception code
Exception/
interrupt/trap?
Interrupt
INTEVT â interrupt code
Trap
EXPEVT â H'160
TRA â TRAPA (imm)
SGR â R15
No
Yes
Reset exception?
Yes
(BRCR.UBDE == 1) &&
No
(user break exception)?
PC â DBR
PC â VBR + vector offset
PC â H'A0000000
Debug program
R15 â SGR
(STC instruction)
Exception handling routine
Execute RTE instruction
PC â SPC
SR â SSR
End of exception
operations
Figure 20.2 User Break Debug Support Function Flowchart
Rev.4.00 Oct. 10, 2008 Page 817 of 1122
REJ09B0370-0400
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