r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 1856

• Manufacturer Part Number: r5s77631ay266bgv
• Description: Renesas 32-bit Risc Microcomputer Superhtm Risc Engine Family Sh-4a Series
• Manufacturer: Renesas Electronics Corporation.

Section 41 User Break Controller (UBC)
Rev. 1.00 Oct. 01, 2007 Page 1790 of 1956
REJ09B0256-0100
Hardware operations
Debugging program
(STC instruction)
Figure 41.2 Flowchart of User Break Debugging Support Function
R15 ← SGR
PC ← DBR
Yes
EXPEVT ← Exception code
(CBCR.UBDE == 1)
&& (user break)?
Exception
No
Exception handling routine
INTEVT ← Interrupt code
Exception operation ends
PC
Exception/interrupt/trap?
Execute RTE instruction
Exception/interrupt
←
Reset exception?
SR.MD ← B'1
SR.RB ← B'1
SR.BL ← B'1
VBR +
is generated
SGR ← R15
SPC ← PC
SSR ← SR
PC ← SPC
SR ← SSR
No
vector offset
Interrupt
Yes
TRA ← TRAPA (imm)
Trap
PC ← H'A000 0000
EXPEVT ← H'160