STSPIN32G4TR datasheet(33/48 Pages) STMICROELECTRONICS

33 / 48 page

Table 25. Device STATUS register

Bit #

Bit name

Default

Description

STATUS

Address 0x80

Read only

LOCK

Indicates if the protected registers are locked:

•

0: Unlocked

•

1: Locked

RESET

Indicates if the registers had been reset to the

default (reset command or power-up):

•

0: No reset

•

1: Reset

VDS_P

Indicates the VDS protection triggering:

•

0: VDS protection not triggered

•

1: VDS Protection triggered

THSD

Indicates the thermal shutdown status:

•

0: Device not in THSD

•

1: Device in THSD

VCC_UVLO

Indicates the VCC UVLO status:

•

0: Device not in VCC UVLO

•

1: Device in VCC UVLO

5.5.5.1

Command registers

CLEAR and RESET are command registers. It is only allowed to set all bits to execute the command, other values

are rejected.

In case of read the device returns 0xFF.

5.5.5.2

Read/write registers

All the registers are read and written using the I2C standard method.

5.5.5.3

Protected registers

All critical registers of the device are protected against unwanted rewriting.

When the content of the LOCK register does not fit the following condition:

LOCK= NLOCK

__________

the protected registers are read-only.

When the content fits the above condition, the protected registers can be written, and the power stage is forced

into safe condition: all the gate driver outputs are forced low.

STSPIN32G4

Control logic

DS13630 - Rev 1

page 33/48

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