HD404369 Datasheet, PDF (39/117 Pages) Hitachi Semiconductor – 4-bit HMCS400-Series microcomputer

HD404369 Series
INT₀
Sampling
High
Low Low
Figure 20 Edge Detection
INT₀
INT₀
Interrupt
frame
A: Low
B: Low
Interrupt
frame
A: High
B: High
(a) High level period
(b) Low level period
Figure 21 Sampling Example
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