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AS8530

Datasheet - Detailed Descr i p ti on

7.9 State Diagram

The complete functional state machine for AS8530 is illustrated in Figure 6. Some soft-states in the FSM like “TXWD Wait”, “Standby Wait” and

other “wait” states have been included for the sake of completeness.

Figure 6. Finite State Machine Model for the AS8530 System

RESET TIMEOUT

OTP LOAD

INIT0

NORMAL

WAIT_TEST

WAIT_OTP

OVTEMP

Temporary

Shutdown

SLEEP

Vsup > Vsuvr_off

otp_load

RX=0

test_en

otp_e

n

Temperature > Tsd

Temperature > Tsd

Temperature > Tsd

Temperature < Tret

stan

dby

Standby &

sleep

128msec

rwake

Vcc < Vuvr_on

RESET time >

Tem

porary

shutd

own

Vcc < Vuvr_on ||

wwdtimeout

STANDBY WAIT

Temperature > Tsd

! sta

ndb

y

TXWD WAIT

Temperature > Tsd

Temperature > Tsd

Vcc < Vuvr_on

RX=0

Temperature > Tsd

Vcc < Vuvr_on ||

wwdtimeout

STANDBY