ML22Q533 datasheet(39/178 Pages) ROHM

39 / 178 page

FEDL22Q53X-02

ML22Q53X

The operation when no WDTCL command is entered is as follows.

< When "Transition to the command standby state after power-up" is selected by the second overflow of the WDT counter >

*1 Misoperation detection and failure detection outputs are selected by OUTSTAT command.

*2 Even if transferring to the command standby state after power-up by the second overflow of the WDT counter, the

states of WDTERR bit and RSTERR bit remain. The state configured by OUTSTAT command also remains.

< When "Transition to the command standby state after power-up" is not selected by the second overflow of the WDT

counter >

*1 Misoperation detection and failure detection outputs are selected by OUTSTAT command.

WDTEN

Set WDTEN = "1"

Count-up

WDT counter

WDT overflow

WDTERR

RSTERR

Command

SAFE

WDTCL

Count-up

STATUSn pin

*1 n:1 or 2

Change to RSTERR = "1" on the second overflow of

the WDT counter.

Shifts to the command standby state after power-up.

Change to WDTERR = "1"on the

first overflow of the WDT counter.

Status

Stop WDT

WDT operation

Stop WDT

Signal to shift command

standby state after power-up

WDTEN

Set WDTEN = "1"

Count-up

WDT counter

WDT overflow

WDTERR

RSTERR

Command

SAFE

WDTCL

Count-up

STATUSn pin

*1 n:1 or 2

Change to RSTERR = "1" on the second overflow of the

WDT counter.

No shifting to command standby state after power-up

Change to WDTERR = "1"on the

first overflow of the WDT counter.

Status

Stop WDT

WDT operation

Signal to shift command

standby state after power-up

Count-up

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ML22Q533 Datasheet(PDF) 39 Page - Rohm

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