L9662 datasheet(49/80 Pages) STMICROELECTRONICS

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L9662

Functional description

resistance Diagnostics, High Squib Resistance

Diagnostics, HSS Diagnostic and VRESx Diagnostics

1 = IPD disabled on all channels

Bits D3

Bit used for resistance measurement amplifier calibration. Only valid

when squib resistance diagnostics is selected, otherwise this bit will be

ignored and a 0 will be reported in the response

0 = No calibration (Normal squib resistance measurements)

1 = Calibration

For bits D2:D0

The following table shall be used for channel selection.

Note:

Except for short to battery /ground diagnostics and loop to loop test the state of IPD (D4) will

not affect the test

Monitor commands

Monitor Mode 1

Monitor mode main information:



Deployment status

The SPI message definition for MOSI commands and MISO responses in Monitor Mode 1

are defined below.

Table 26. Channel selection

Channel

Bit D2

Bit D1

Bit D0

MSB

LSB

D15

D14

D13

D12

D11

D10

MOSI Command for Monitor Mode 1

Channel Selection Status Request

MISO Response for Monitor Mode 1

Channel Status

L9662 数据表(PDF) 49 Page - STMicroelectronics

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