L9945_V01 datasheet(45/144 Pages) STMICROELECTRONICS

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5.10.1

COMMAND X frame partitioning

COMMAND 0

Frame partitioning

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10

Description

Spread spectrum and diagnostic enable,OUT1-8 control, input selection and protection disable

[31:28] C: Command 0

0000

[27] R/W: Bit to read/write configuration

0: Write & request read

1: Request read only

[26] SPREAD_SPECTRUM: Activates or deactivates the spread spectrum functionality

0: Deactivated

1: Activated

[25] ENABLE_DIAGNOSTIC: Enables or disables the diagnostics for all outputs. When set to "0" diagnostics for all outputs is "No

diagnostic done".

0: Diagnostic disable

1: Diagnostic enable

[24] SPI_INPUT_SEL_08: Driving mode selection bit (output driven by SPI or NON)

0: Output controlled via NONx

1: Output controlled via SPI

[23] SPI_INPUT_SEL_07: Driving mode selection bit (output driven by SPI or NON)

0: Output controlled via NONx

1: Output controlled via SPI

[22] SPI_INPUT_SEL_06: Driving mode selection bit (output driven by SPI or NON)

0: Output controlled via NONx

1: Output controlled via SPI

[21] SPI_INPUT_SEL_05: Driving mode selection bit (output driven by SPI or NON)

0: Output controlled via NONx

1: Output controlled via SPI

[20] SPI_INPUT_SEL_04: Driving mode selection bit (output driven by SPI or NON)

0: Output controlled via NONx

1: Output controlled via SPI

[19] SPI_INPUT_SEL_03: Driving mode selection bit (output driven by SPI or NON)

0: Output controlled via NONx

1: Output controlled via SPI

L9945

Functional description

DS12275 - Rev 10

page 45/144

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