L9800 datasheet(46/55 Pages) STMICROELECTRONICS

46 / 55 page

Field name

Type

Bit

offset

Bit

width

Reset

value

Reset

source

Description

DIAG_OFF_EN, 0x0D

OUTn

0x00

NPOR, NRES pin,

CFG_1.RST bit, VDD_UV

Activation of driver load diagnosis in off state for n = 0 to

0 (default): diagnosis not active

1: diagnosis active, DIAG_OFF_EN.OUTn bits are set

back to ”0” at the end of the diagnosis cycle

RESERVED_2, 0x0E

UNUSED

0x00

DIAG_OVC_OVT_RLW, 0x0F

OUTn

0x00

NPOR, NRES pin,

CFG_1.RST bit, VDD_UV

Clear on write for overcurrent and overtemperature error

for n = 0 to 7:

0 (default): not active

1: active

STA_0, 0x010

0x00

DIS

0x00

NPOR

Status of DIS input (if properly configured)

NRES_N

0x00

NPOR

Status of NRES input (if properly configured)

IDLE

0x00

NPOR

Status of IDLE input

IN1

0x00

NPOR

Status of IN1 input

IN0

0x00

NPOR

Status of IN0 input

OUT_ON_ERR

RLR

0x00

NPOR

0: normal load

1: overcurrent or overtemperature detected

OUT_OFF_ERR

RLR

0x00

NPOR

0: normal load

1: open load in off state or short load detected

STA_1, 0x11

0x00

POR

RLR

0x01

NPOR

0: NPOR condition not detected

1: NPOR condition detected

VDDIO_UV

RLR

0x00

NPOR

0: battery undervoltage not detected

1: battery undervoltage detected

VBATT_UV

RLR

0x00

NPOR

0: battery undervoltage not detected

1: battery undervoltage detected

MODE

0x00

NPOR

Status of operating mode:

00: Sleep mode

01: Limp-home mode

10: Idle mode

11: Active mode

DIAG_OVC_OVT, 0x12

OUTn

RLW

0x00

NPOR

Driver overcurrent or overtemperature detection n = 0 to

0 (default): normal load

1: overcurrent or overtemperature detected

L9800

Serial peripheral interface (SPI)

DS14041 - Rev 2

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