h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 121

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

4.5
Trap instruction exception handling starts when a TRAPA instruction is executed. Trap instruction
exception handling can be executed at all times in the program execution state.
The TRAPA instruction fetches a start address from a vector table entry corresponding to a vector
number from 0 to 3, as specified in the instruction code.
Table 4.4 shows the status of CCR and EXR after execution of trap instruction exception handling.
Table 4.4
Legend:
1: Set to 1
0: Cleared to 0
—: Retains value prior to execution.
Interrupt Control Mode
0
2
Trap Instruction
Status of CCR and EXR after Trap Instruction Exception Handling
1
1
I
CCR
UI
—
—
Rev. 5.00 Sep 22, 2005 page 95 of 1136
Section 4 Exception Handling
I2 to I0
—
—
REJ09B0257-0500
EXR
—
T
0