AS8525 datasheet(23/38 Pages) AMSCO

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AS8525

Datasheet - Application In form atio n

Table 16. Transition Table

Transition

Interface

Reg.

0x05

Flags

From mode

To mode

LIN

rwake Uvbat

Uvcc

Comments

Normal Mode

Stand-By

X-RS

X-H

H-L

inactive

TX is high for

TSTNDY_trigger

Sleep

1. Chosen by OTP option

X-RS

X-H

H-L

inactive

set

TX is high for

TSTNDY_trigger

Temporary

Shutdown

X-RS

X-H

inactive

set

The Control Bit is set

through the 4-Wire SPI

interface

Over-

Temperature

X-RS

X-H

set

Temperature monitor

output asserted

(covered by scan)

2-Wire Interface

H-L

inactive

TX goes High to low

within Ttx_SP_trigger

Window.

2-Wire Interface

(This is a

testing

condition only)

Normal Mode

inactive

Completion of 2-Wire

Read/Write command

Temporary

Shutdown

X-RS

X-H

inactive

set

Completion of 2-Wire

Write command to 0x05

Over-

Temperature

X-RS

X-H

set

Temperature monitor

output asserted

(covered by scan)

Stand-By Mode

Normal (LW)

H-X

L-H

inactive

Normal (RW)

H-X

set

inactive

inactive Remote Wake up Event

occurred on LIN

Temporary

Shutdown

inactive

set

The Control Bit is set

through the 4-Wire SPI

interface

Over-

Temperature

set

Temperature monitor

output asserted

(covered by scan)

Temporary

Shutdown

Mode

Normal

RS-X

H-X

inactive

clear

Internal 128ms timer

expired

Over-

Temperature

Mode

Normal

RS-X

H-X

clear

Temperature monitor

output de-asserted

(covered by scan)

Sleep Mode

Normal

RS-X

H-X

set

inactive

clear

Remote Wake up Event

occurred on LIN

Over-

Temperature

2. Effect of Transition

set

hold

Temperature monitor

output asserted

(covered by scan)

All States

Power Off

L-H

3. Cause for Transition

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