HD4043312 데이터 시트보기 (PDF) - Hitachi -> Renesas Electronics

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HD4043312

4-bit HMCS400-Series microcomputer

Hitachi -> Renesas Electronics 

HD404339 Series

Instruction cycles

1

2

3

4

5

6

Instruction

execution*

Interrupt

acceptance

Stacking

IE reset

Vector address

generation

Execution of JMPL

instruction at vector address

Execution of

instruction at

start address

of interrupt

routine

Note: * The stack is accessed and the interrupt enable flag is reset after the instruction

is executed, even if it is a two-cycle instruction.

Figure 10 Interrupt Processing Sequence

18

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