HD404324 Просмотр технического описания (PDF) - Hitachi -> Renesas Electronics

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Компоненты Описание

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HD404324

4-Bit Microcontroller

Hitachi -> Renesas Electronics 

Standby

Oscillator: Active

Peripheral clocks: Active

All other clocks: Stopped

Watch

Oscillator: Stopped

Sub-oscillator: Active

Peripheral clocks: Stopped

All other clocks: Stopped

HD404328 Series

No

RESET

= 1?

Yes IF0 No

= 1?

Yes

IM0

= 0? No

Yes

IF1 No

= 1?

Yes

IM1

= 0? No

Yes

(SBY

only)

IFTA No

= 1?

Yes

IFTB No

= 1?

IMTA

= 0? No

Yes

Yes

IMTB

= 0? No

Yes

IFTC No

= 1?

Yes

IMTC

= 0? No

Yes

IFZC No

= 1?

Yes

IMZC

= 0? No

IFAD No

= 1?

Yes

No

IFS

= 1?

Yes

IMAD

Yes

= 0? No

Yes

IMS

= 0? No

(SBY

only)

(SBY

only)

(SBY

only)

(SBY

only)

(SBY Yes

only)

Restart

processor clocks

Reset MCU

Execute next

instruction

Restart

processor clocks

Execute next

instruction

No

IF = 1,

IM = 0,

IE = 1?

Yes

Accept interrupt

Figure 11 MCU Operation Flowchart

29

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