HD6412340 HITACHI [Hitachi Semiconductor], HD6412340 Datasheet - Page 119

• Manufacturer Part Number: HD6412340
• Description: H8S/2345 F-ZTAT Hardware Manual
• Manufacturer: HITACHI [Hitachi Semiconductor]

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 4.5 shows the status of CCR and EXR after execution of trap instruction exception handling.
Table 4.5
Interrupt Control Mode
0
2
Legend
1: Set to 1
0: Cleared to 0
—: Retains value prior to execution.
Trap Instruction
Status of CCR and EXR after Trap Instruction Exception Handling
I
1
1
CCR
UI
—
—
I2 to I0
—
—
EXR
T
—
0
99