AS8222 datasheet(27/43 Pages) AMSCO

27 / 43 page

AS8222

Datasheet - Detailed Descr i p ti on

www.ams.com/eng/FlexRay/AS8222

Revision 1.0

26 - 42

Notes:

1. (a) indicates the event that causes the transition.

2. (b) indicates the consequence of the event (a).

3. “H” = Digital level high; “L” = Digital level low; “X” = Don’t care.

STANDBY

→ LX

NORMAL

→ HL→ H

(b) H

→ L

(a)

→ HH

→ HL

RECEIVE-ONLY

→ LX

(b) H

→ L

(a)

→ H

GO-TO-SLEEP

→ LX

→ L

(a)

→ HL

LH

XXXX

SLEEP

→ H

XXX

GO-TO-SLEEP

NORMAL

→ H

XXX

STANDBY

→ L

LLL

SLEEP

→ H

XXXX

→ H

XXX

SLEEP

LLL

NORMAL

→ L

LLL

→ LL

→ H

RECEIVE-ONLY

→ L

(b)

→ L

(b)

→ L

(b)

→ L

(a)

→ HX

STANDBY

POWER-OFF

→ L

STANDBY

Any

→ H

XXX

POWER-OFF

→ H

XXX

1. If GO-TO-SLEEP is selected for more than tSLEEP

Table 19. Mode Transitions

Initial Mode

Supply Undervoltage Flag / Event

Wake Flag

Host Event

Next Mode

VIO

VBAT

VCC

STBN

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