L9779WD-SPI datasheet(121/141 Pages) STMICROELECTRONICS

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L9779WD-SPI

Functional description

140

CONFIG_REG10 (CPS Configuration register)

Configuration register 10

Address:

1 0010

Type:

WR_CPS

Reset:

IDENT_REG/DIA_REG[1:5]

Diagnostic register 1, 2, 3, 4, 5

Address:

1 0000

Subaddress:

0000 0001,

0000 0010,

0000 0011,

0000 0100,

0000 0101

Type:

R (Read only)

Reset:

0000 0000

654

see Table 37

CPS_CONF

[7:1] See Table 37

[0] CPS_CONF (CPS mode is enabled if REG7 bit4 is cleared first)

1: OUTA...OUTD are configured as 2 full-bridge for stepper motor driving (default)

0: OUTA...OUTD are configured as half bridges

7654

DIA_REG1

OUT4_DIAG

OUT3_DIAG

OUT2_DIAG

OUT1_DIAG

DIA_REG2

OUT7_DIAG

OUT6_DIAG

OUT5_DIAG

DIA_REG3

OUT14_DIAG

OUT13_DIAG

WDA_STATUS

DIA_REG4

OUT18_DIAG

OUT17_DIAG

OUT16_DIAG

OUT15_DIAG

DIA_REG5

RESERVED

OUT20_DIAG

DIA_REG1:[7:6] OUT4_DIAG: Diagnosis bit of power stage OUT4

00: Short-circuit to ground (SCG)

01: Open load (OL)

10: Short-circuit to BAT (SCB)

11: Power stage OK

NO FAIL

DIA_REG1:[5:4] OUT3_DIAG: Diagnosis bit of power stage OUT3

00: Short-circuit to ground (SCG)

01: Open load (OL)

10: Short-circuit to BAT (SCB)

11: Power stage OK

NO FAIL

L9779WD-SPI Datasheet(PDF) 121 Page - STMicroelectronics

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