L9396 datasheet(53/109 Pages) STMICROELECTRONICS

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DS12539 Rev 6

53/109

L9396

Remote sensor interface

108

WSI remote sensor data/fault register

RS_DATA_RSDR_x register stores status bits of WSS interface. Output format depends on

the status of bit 15.

No Fault condition:

Bit 9:8

FIRST_RANGE_SEL (valid only for

adaptive thresholds):

00 ==> ∆Ith1MIN=6.25mA,

∆Ith1MAX=7.75mA;

01 ==> ∆Ith1MIN=5.5mA,

∆Ith1MAX=8.5mA;

10 ==> ∆Ith1MIN=4.75mA,

∆Ith1MAX=9.25mA;

11 ==> ∆Ith1MIN=4.0mA,

∆Ith1MAX=10.0mA;

SSM_RESET

LBIST

Bit 7:0

WSI_FIRST_TH[7:0]:

In case of fixed thresholds this is

used to calculate low threshold

(see formula in 4.1).

In case of adaptive thresholds this

is the minimum value of IB0

(IB0MIN range from 0 to 24 mA).

In both cases LSB=93.75 µA typ.

0x33

SSM_RESET

LBIST

Table 30. RS_DATA_RSDR_0-3 registers

ADDR

Name

Type

Bits = 20

0010000

RS_DATA_RSDR_0

See description

0010001

RS_DATA_RSDR_1

See description

0010010

RS_DATA_RSDR_2

See description

0010011

RS_DATA_RSDR_3

See description

Table 31. RS_DATA_RSDR_0-3 registers bit description [Bit 15 = 0]

Data Field

Description

Reset Value

Reset Event

Bit 19:17

CRC [2:0]: CRC based on bits

[16:0] Update based on bits [16:0]

SSM_RESET

LBIST

Bit 16

STDSTL: Standstill indication (only

for VDA sensor or PWM 2 edges)

0 => Valid sensor signal

1 => Standstill

SSM_RESET

LBIST

Table 29. RS_AUX_CFG register bit description (continued)

Data Field

Description

Reset Value

Reset Event

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