STGAP1S datasheet(50/67 Pages) STMICROELECTRONICS

50 / 67 page

Programming manual

STGAP1S

50/67

DocID027190 Rev 3

9.2

Registers and flags description

All device features can be configured through a set of 8-bit long registers.

There are three different types of registers:



Local registers are located on the low voltage side



Remote registers are located on the isolated side



Shared registers are located both on the low voltage and isolated side and the value of

the two copies is kept synchronized.

A map of the user registers is shown in Table 22.

9.2.1

CFG1 register (low voltage side)

The CFG1 register has the structure of Table 23.

Table 22. Registers map

Name

Add-

ress

Side

(1)

Structure

[7]

[6]

[5]

[4]

[3]

[2]

[1]

[0]

CFG1

0x0C

CRC_SPI UVLOD_EN SD_FLAG DIAG_EN

DTset

INfilter

CFG2

0x1D

SENSEth

DESATcur

DESATth

CFG3

0x1E

2LTOth

2LTOtime

CFG4

0x1F

OVLO_EN UVLOlatch

VLONth

VHONth

CFG5

0x19

2LTO_EN CLAMP_EN DESAT_EN SENSE_EN

STATUS1 0x02

OVLOH

OVLOL

DESAT

SENSE

UVLOH

UVLOL

TSD

TWN

STATUS2 0x01

REGERRR

ASC

GATE

STATUS3 0x0A

DT_ERR

SPI_ERR

REGERRL

OVLOD

UVLOD

TEST1

0x11

GOFFCHK GONCHK

DESCHK

SNSCHK

RCHK

DIAG1

0x05

DIAG1_7

DIAG1_6

DIAG1_5

DIAG1_4

DIAG1_3

DIAG1_2

DIAG1_1

DIAG1_0

DIAG2

0x06

DIAG2_7

DIAG2_6

DIAG2_5

DIAG2_4

DIAG2_3

DIAG2_2

DIAG2_1

DIAG2_0

1. R: remote (isolated side), L: local (low voltage side).

Table 23. CFG1 register

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

CRC_SPI

UVLOD_EN SD_FLAG

DIAG_EN

DTset

INfilter

Default/reset

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