r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 129

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

Note: * When the exception of the highest priority is an interrupt.
Execute next instruction
exception requested?
Whether IMASK is updated or not can be set by software.
"Accepted interrupt level" is B'1111 for NMI.
requested?
requested?
General
Interrupt
Reset
No
No
No
Figure 5.1 Instruction Execution and Exception Handling
Yes
SSR ← SR
SPC ← PC
SGR ← R15
EXPEVT/INTEVT ← exception code
SR.{MD,RB,BL} ← 111
SR.IMASK ← received interuupt level (*)
PC ← (CBCR.UBDE=1 && User_Break?
Yes
Yes
DBR: (VBR + Offset))
priority exception
re-exception
Is highest-
type?
No
Cancel instruction execution
Yes
result
Rev.1.00 Jan. 10, 2008 Page 99 of 1658
EXPEVT ← exception code
SR. {MD, RB, BL, FD, IMASK} ← 11101111
PC ← H'A000 0000
5. Exception Handling
REJ09B0261-0100