UM0759

General description

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3.3.6

SPI diagnosis indication

This field will indicate the diagnosis status. SPI diagnosis word will displayed at SPI

Diagnosis Indication field. The diagnostic protocol was referred below:

Figure 22.

SPI diagnostic information

For more diagnostic information, Please refer to L9958 datasheet in detail.

Table 7.

SPI diagnostic protocol

Bit

Name

Description

Status after

reset

0-LSB

OL_OFF

Open load in OFF condition

0

1

OL_ON

Open load in ON condition

0

2

VS_UV

Vs undervoltage

0

3

VDD_OV

Vdd overvoltage

0

4

ILIM

Current limitation reached

0

5

TWARN

Temperature warning

0

6

TSD

Over-temperature shutdown

0

7

ACT

Bridge enable

1

8

OC_LS1

Over-current on low side 1

0

9

OC_LS2

Over-current on low side 2

0

10

OC_HS1

Over-current on high side 1

0

11

OC_HS2

Over-current on high side 2

0

12

Null

Not used

–

13

Null

Not used

–

14

SGND_OFF

Short to GND in OFF condition

0

15-MSB

SBAT_OFF

Short to battery in OFF condition

0