L9679ETR datasheet(34/127 Pages) STMICROELECTRONICS

34 / 127 page

DCR_x(x=0, 2, 4, 6)

Deployment configuration channel 0, 2, 4, 6 (DCR_x)

MISO

ID:

06 (DCR_0), 08 (DCR_2), 0A (DCR_4), 0C (DCR_6)

Type:

Read:

0600 (DCR_0), 0800 (DCR_2), 0A00 (DCR_4), 0C00 (DCR_6)

Write:

000C (DCR_0), 0010 (DCR_2), 0014 (DCR_4), 0018 (DCR_6)

POR

WSM

SSM

[11:6]

000000

Deploy_Time[5:0]: Default deployment time = 0 µs (no deployment, 8 µs pulse output on ARM1

pin during PULSE TEST)

Deployment time: actual deployment time (ms) = Deploy_Time*0.064 ms (0.064 ms/count up to

4.032 ms max)

[5:4]

Dep_Current[1:0]: Deployment Current limit select

Updated by SSM_RESET or SPI write while in DIAG state

00: Unused (no deploy)

01: 1.75 A min

10: 1.2 A min

11: Unused (no deploy)

[3:2]

Dep_expire_time[1:0]: Deploy command expiration timer select

Updated by SSM_RESET or SPI write while in DIAG state

00: 500 ms

01: 250 ms

10: 125 ms

11: 0 ms

[0]

PD_CURR_CSR: Pull down current control for Common SR connection

Updated by SSM_RESET or SPI write

0: PD Current OFF only for channel selected for diagnostic measurement,

ON for all other channel

1: PD Current OFF for both channels of the channel pair selected for

diagnostic measurement, ON for all other channel

L9679E

SPI interface

DS12485 - Rev 8

page 34/127

L9679ETR Datasheet(PDF) 34 Page - STMicroelectronics

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