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Revision 1.1

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AS8530

Datasheet - Application In form atio n

Note:

When the device is powered ON @ ambient temperature of 125ºC, the status of the OVTEMP140 can be HIGH indicating an over

temperature warning. This is because 125ºC is within the limits for the OVTEMP140.

Diagnosis Register

0 x 08

Diagnostic Register 1

On POR_VSUP

0000_0011

RD

D7..D0 = DR[7:0] 8 LSB bits of the 24 bit Diagnostic Register

D0 PORVSUP (set when VSUP < Vsuvr_on, cleared after µC read)

D1 UVVCC Under voltage VCC (set when VCC < Vuvr_on, cleared

after µC read)

cleared after µC read)

cleared after µC read)

D4 OVVBAT Overvoltage VBAT. (set when VSUP > Vovthh, cleared

after µC read)

D5 Reserved

D6 RWAKE Remote Wakeup (set on Remote Wakeup event on LIN

Bus, cleared after µC read)

D7 WWDT Window watchdog timeout. (set on failure of Window

watchdog timeout, cleared after µC read)

0 x 09

Diagnostic Register 2

On POR_VSUP

0000_0000

RD

D7..D0 = DR[15:8] next 8 LSB bits of the 24 bit Diagnostic

Register.

D0 TXTIMEOUT Tx timeout of 1sec. (set on TX low > 1sec,

cleared after µC read)

D1 TEMPSHUT this bit is set on entering into temporary

shutdown state and cleared after µC read.

D7 D2 Reserved

Table 8. Configuration Registers

Address

Register Name

POR Value

RD / WR

Description