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AS8530

Preliminary Data Sheet - D e t a i l e d D e s c r i p t i o n

7.2.5 Thermal Shutdown State

disabled. No wake-up functionality is available. Window watchdog, TX timeout watchdog, and LDO are completely turned off. Only the over-

on transition, see Table 12.

Note:

wake, X = do not care.

Table 12. Transition Table

Transition

Interface

Reg.

0x05

D0

Flags

From mode

To mode

LIN

RX

TX

EN

rwake Uvbat

OT

Uvcc

Comments

Normal

Mode

Stand-By

X-RS

X-H

2

H

3

H-L

3

L

X

X

inactive

inactive

TX is high for

Sleep

1

1. Chosen by factory programming option

X-RS

X-H

2

H

3

H-L

3

L

X

X

inactive

set

TX is high for

1

Temporary

Shutdown

X-RS

X-H

2

X

H

3

H

X

X

inactive

set

The Control Bit is set

through the 2-Wire SP

interface

Over-

Temperature

X-RS

X-H

2

XX

L

X

X

set

set

Temperature monitor

output asserted

(covered by scan)

Stand-By

Mode

Normal (LW)

X

H-X

2

X

L-H

3

L

X

X

inactive

inactive

Normal (RW)

X

H-X

2

H

X

L

set

X

inactive

inactive

Remote Wake up

Event occurred on

LIN

Temporary

Shutdown

RS

H

2

HL

H

3

XX

inactive

set

The Control Bit is set

through the 2-Wire SP

interface

Over-

Temperature

RS

H

2

HL

L

X

X

set

set

Temperature monitor

output asserted

(covered by scan)

Temporary

Shutdown

Mode

Normal

RS-X

H-X

2

X

X

L

X

X

inactive

clear

Internal 128ms timer

expired

Over-

Temperature

Mode

Normal

RS-X

H-X

2

X

X

L

X

X

clear

clear

Temperature monitor

output de-asserted

(covered by scan)

Sleep Mode

3

Normal

RS-X

H-X

2

X

X

L

set

X

inactive

clear

Remote Wake up

Event occurred on

LIN

Over-

Temperature

RS

H

2

2. Effect of Transition

X

X

L

X

X

set

hold

Temperature monitor

output asserted

(covered by scan)

All States

Power Off

XXXX

X

X

L-H

3

3. Cause for Transition

XX