L9945 datasheet(107/144 Pages) STMICROELECTRONICS

107 / 144 page

RESPONSE 13

Frame partitioning

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10

Description

Device status, battery and temperature monitor

Reset

[31:28] C: Response to command 12

Reset: 1101

Reset Condition: -

[27] R/W: Bit to read/write configuration

0: Write & request read

1: Request read only

Reset: 1

Reset Condition: POR, NRES

[26:24] FIXED_PATTERN: Fixed pattern

Reset: 010

Reset Condition: -

[23] NDIS_PROT_LATCH: Bit set to 1 if the protection on NDIS pin was activated while NDIS was being internally pulled down,

reactivation with control change

0: no OV condition on NDIS

1: OV condition on NDIS detected

Reset: 0

Reset Condition: Read out POR

[22] OT_STATE: Current state of OT comparator output

0: no OV condition on SDO detected

1: OV condition on SDO detected

Reset: 0

Reset Condition: -

[21] SDO_OV_LATCH: Shows if an OV in SDO pin was detected since last read out

0: no OV condition on SDO detected

1: OV condition on SDO detected

Reset: 0

Reset Condition: Read out POR

[20:11] TEMP_ADC: Returns the actual temperature measured by the internal temperature sensor of the device. 10 bit to code for the

actual temperature of the device

See Temperature ADC.

Reset: X

Reset Condition: POR, NRES

L9945

Functional description

DS12275 - Rev 10

page 107/144

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