L9680 datasheet(150/286 Pages) STMICROELECTRONICS

150 / 286 page

SPI interfaces

L9680

150/286

DS11615 Rev 7

7.5

Remote sensor SPI register map

The Remote Sensor SPI interface consists of twelve 32-bit read registers (one for each

logical channel) to allow for access to decoded sensor data and fault registers. The registers

are addressed by the read register ID and the Global ID bit.

The L9680 checks the validity of the received RID field in the MOSI_RS frame. Should a SPI

read command be received containing an unused RID address, the command will be

discarded and the ERR_RID bit will be flagged in the current GSW.

Table 8. Remote sensor SPI register map

GID

RID / WID

Hex R/W

Name

Description

Operating State

Init Diag Safing Scrap Arming

0 1

0 1 0 0 0 0 $50

RSDR0

Remote

sensor

data/status

registers

(PSI-5 or

WSS)

0 1

0 1 0 0 0 1 $51

RSDR1

0 1

0 1 0 0 1 0 $52

RSDR2

0 1

0 1 0 0 1 1 $53

RSDR3

0 1

0 1 0 1 0 0 $54

RSDR4

0 1

0 1 0 1 0 1 $55

RSDR5

0 1

0 1 0 1 1 0 $56

RSDR6

0 1

0 1 0 1 1 1 $57

RSDR7

0 1

0 1 1 0 0 0 $58

RSDR8

0 1

0 1 1 0 0 1 $59

RSDR9

0 1

0 1 1 0 1 0 $5A

RSDR10

0 1

0 1 1 0 1 1 $5B

RSDR11

0 1

0 1 1 1 0 0 $5C

RSTHR0_L

Remote

sensor

(PSI-5 or

WSS)

0 1

0 1 1 1 0 1 $5D

RSTHR1_L

0 1

0 1 1 1 1 0 $5E

RSTHR2_L

0 1

0 1 1 1 1 1 $5F

RSTHR3_L

0 1

1 0 0 0 0 0 $60

RSTHR0_H

Remote

sensor current

2 registers

(WSS only)

0 1

1 0 0 0 0 1 $61

RSTHR1_H

0 1

1 0 0 0 1 0 $62

RSTHR2_H

0 1

1 0 0 0 1 1 $63

RSTHR3_H

0 1

1 0 1 0 1 0 $6A

ARM_STATE Arming signals

status register

1 1

1 1 1 1 1 1 $FF

SAF_CC

Safing record

compare

complete

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