L9779WD-SPI datasheet(127/141 Pages) STMICROELECTRONICS

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L9779WD-SPI

Functional description

140

DIA_REG9

Diagnostic register 9

Address:

1 0000

Subaddress:

0000 1001

Type:

R (Read only)

Reset:

0000 0000

654

KEY_ON_

STATUS

MRD_OVC

VRS_STAT

VRS_DIAG

VTRK2_DIAG[1:0]

VTRK1_DIAG[1:0]

R/W

[7] KEY_ON_STATUS

1: KEY_ON voltage above KEY_ON_H

0: KEY_ON voltage below KEY_ON_L

[6] MRD_OVC

1: Current MRD status is OFF due to previous Over current

0: Current MRD status is ON (no OVC detected)

[5] VRS_STAT

1: Diag ON

0: Diag OFF

[4] VRS_DIAG

0: No Fault

1: Generic fault detected

[3-2] VTRK2_DIAG[1:0]: Diagnosis bit of VTRK2

00: Not used

01: Overload condition/out of regulation

10: Overvoltage (OV) or over temperature (OT) (Lower priority respect to Overload condition)

11: Sensor supply VTRK ok

NO FAIL

[1-0] VTRK1_DIAG[1:0]: Diagnosis bit of VTRK1

00: Not used

01: Overload condition/out of regulation

10: Overvoltage (OV) or over temperature (OT) (Lower priority respect to overload condition)

11: Sensor supply VTRK OK

NO FAIL

L9779WD-SPI Datasheet(PDF) 127 Page - STMicroelectronics

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