L9654 datasheet(32/59 Pages) STMICROELECTRONICS

tên linh kiện	L9654

Giải thích chi tiết về linh kiện	Quad squib driver and dual sensor interface ASIC for safety application

PDF	59 Pages

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Functional description

L9654

32/59

DocID14218 Rev 3

4.11

Deployment driver SPI bit definition

The SPI provides access to read/write in the registers which are internal to the device,

whose responses to various deployment driver commands are summarized in the table

below.

L9654 response to the previous command is sent in the next valid CS_D.

Table 13. Deployment driver SPI response

Mode bits

MOSI command

Mode bits

MISO response

D15

D14

D15

D14

D13

Command Mode

Diagnostic Mode

Monitor Mode

Status Response

SPI Transmission Fault

SPI Fault Response

4.11.1

Deployment driver MOSI bit definition

Table 14. MOSI bit layout

MSB

LSB

D15

D14

D13

D12

D11

D10

MOSI mode bits are defined as shown in the below table.

Table 15. MOSI mode bits definition

Bit D15

Bit D14

Description

Command Mode

Diagnostic Mode

Monitor Mode

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