L9678P datasheet(65/203 Pages) STMICROELECTRONICS

65 / 203 page

DocID029274 Rev 3

65/203

L9678P, L9678P-S

SPI interface

202

5.1.10

Deployment current monitor status registers (DCMTSxy)

Channels 0, 1 (DCMTS01)

Channels 2, 3 (DCMTS23)

Address:

1F (DCMTS01))



20 (DCMTS23)

Type:

Buffer:

$1F00 (DCMTS01)



$2000 (DCMTS23)

Reset:

0 Correct Time/Current combination selected

1 Incorrect Time/Current combination selected (default time/current is set)

DCRxERR

0 Deployment configuration register err

0 Deploy configuration change accepted and stored in memory

1 Deploy configuration change rejected because deploy is in progress



(or DEP_EXPIRE_TIME changed when in DEP_ENABLED state)

DEP_CHx_ExpTimer

[5:0]

0000

Channel x Deployment Expiration Timer value 8ms/count

Updated according to Deployment Driver Control Logic

(Cleared on SSM_RESET OR when Exp Timer times out OR when

SPI_DEPREQx is received while in DEP_ENABLED state AND in ARMING

or SAFING states)

MOSI

MISO

Current_Mon_Timer_y[7:0]

Current_Mon_Timer_x[7:0]

Current_Mon_Time

r_y[7:0]

$00 $00 $00 Channel y current monitor timer value corresponding to SPI command

DCMTSxy.

Set to default (cleared) on SSM_RESET or when a new deployment starts on

channel y. Increments each 16µs while deployment current exceeds monitor

threshold on channel y

Current_Mon_Time

r_x[7:0]

$00 $00 $00 Channel x current monitor timer value corresponding to SPI command

DCMTSxy.

Set to default (cleared) on SSM_RESET or when a new deployment starts on

channel x. Increments each 16µs while deployment current on channel x

exceeds monitor threshold

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