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HD404612FS Datasheet(PDF) 34 Page - Renesas Technology Corp

Part # HD404612FS
Description  4-Bit Single-Chip Microcomputer
PDF  91 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD404612FS Datasheet(HTML) 34 Page - Renesas Technology Corp

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HD404618 Series
32
MCU operation
cycle
IF = 1 ?
Instruction
execution
SBY/STOP
instruction ?
PC
next
location
PC
vector
address
Low-power mode
operation cycle
IE
;
Stack
(PC),
(CA),
(ST)
IM = 0 and
IE = 1 ?
←
←
←
Yes
No
No
Yes
Yes
No
Interrupt request flag
Interrupt mask
Interrupt enable flag
←
0
IF:
IM:
IE:
Program counter
Carry flag
Status flag
PC:
CA:
ST:
Figure 17 MCU Operating Sequence (MCU operation cycle)



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