h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 152

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 4 Exception Handling
4.4
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 4.3 shows the status of CCR and EXR after execution of trap instruction exception handling.
Table 4.3
Interrupt Control Mode
0
1
Legend:
1: Set to 1
0: Cleared to 0
—: Retains value prior to execution.
Rev. 4.00 Jun 06, 2006 page 98 of 1004
REJ09B0301-0400
Trap Instruction
Status of CCR and EXR after Trap Instruction Exception Handling
I
1
1
CCR
UI
—
1
I2 to I0
—
—
EXR
T
—
—