Table of Contents
G
Hardware interrupt inhibition by interrupt inhibit instruction
Table 3.5-8 shows the hardware interrupt inhibit instructions.
If a hardware interrupt occurs during execution of a hardware interrupt inhibit instruction, the interrupt is
processed after execution of the hardware interrupt inhibit instruction and other instructions.
Table 3.5-8 Hardware Interrupt Inhibit Instructions
Instruction that does not
accept interrupt request
G
Hardware interrupt inhibition during execution of software interrupt
When a software interrupt is started, the interrupt enable flag (CCR: I) is cleared to 0 and the interrupt is
disabled.
Prefix Code
PCB
MOV ILM,#imm8
DTB
OR CCR,#imm8
ADB
AND CCR,#imm8
SPB
POPW PS
CMR
NCC
Interrupt Inhibit Instruction
CHAPTER 3 CPU
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