HC705JB2GRSSLASHH datasheet(44/128 Pages) NXP

Nome de Peças	HC705JB2GRS/H

Descrição Electrónicos	Industry standard M68HC05 CPU core

PDF	128 Pages

Scroll/Zoom	100%

Fabricante Electrônico	NXP [NXP Semiconductors]

Página de início	http://www.nxp.com

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44 / 128 page

GENERAL RELEASE SPECIFICATION

August 28, 1998

LOW POWER MODES

MC68HC705JB2

6-2

REV 1.1

Figure 6-1. STOP/WAIT Flowchart

STOP

EXTERNAL

RESET?

EXTERNAL

INTERRUPT?

START STABILIZATION DELAY

YES

END OF

STABILIZATION

DELAY?

YES

WAIT

RESTART INTERNAL PROCESSOR CLOCK

1. LOAD PC WITH RESET VECTOR

2. SERVICE INTERRUPT.

a. SAVE CPU REGISTERS ON STACK.

b. SET I BIT IN CCR.

c. LOAD PC WITH INTERRUPT VECTOR.

EXTERNAL

RESET?

YES

EXTERNAL

INTERRUPT?

YES

USB

INTERRUPT?

YES

RESET OR

YES

STOP EXTERNAL OSCILLATOR,

STOP INTERNAL TIMER CLOCK,

RESET START-UP DELAY

STOP INTERNAL PROCESSOR CLOCK,

CLEAR I-BIT IN CCR,

SET IRQE IN ICSR

USB

INTERRUPT

YES

IRQ

OR RESET?

RESTART EXTERNAL OSCILLATOR,

IRQ

TIMER1

INTERRUPT?

INTERNAL

MFT

INTERRUPT?

INTERNAL

EXTERNAL OSCILLATOR ACTIVE,

INTERNAL TIMER CLOCK ACTIVE

STOP INTERNAL PROCESSOR CLOCK,

CLEAR I-BIT IN CCR,

SET IRQE IN ICSR

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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