HD4074329US View Datasheet(PDF) - Hitachi -> Renesas Electronics

Part Name

Description

Manufacturer

HD4074329US

4-Bit Microcontroller

Hitachi -> Renesas Electronics 

HD404328 Series

Instruction cycles

1

2

3

4

5

6

Instruction

execution

Interrupt

acceptance

Stacking;

IE reset

Stacking;

vector address

generation

Execution of JMPL

instruction at vector address

The stack is accessed and the IE reset after the instruction

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

Figure 7 Interrupt Processing Sequence

Execution of

instruction at

start address

of interrupt

routine

20

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