ST25R3911B datasheet(91/116 Pages) STMICROELECTRONICS

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1.3.54

Phase measurement configuration register

Address: 36h

Type: RW

Table 85. Phase measurement configuration register

Bit

Name

Default

Function

Comments(1)

pm_d3

Definition of Δpm (difference to reference that triggers

interrupt)

pm_d2

pm_d1

pm_d0

pm_aam

0: Exclude the IRQ measurement

1: Include the IRQ measurement

Include/exclude the measurement that

causes IRQ (having difference > Δpm to

reference) in auto-averaging

pm_aew1 0

00: 4

01: 8

10: 16

11: 32

Define weight of last measurement

result for auto-averaging

pm_aew0 0

pm_ae

0: Use Phase measurement reference register

1: Use phase measurement

auto-averaging as reference

Select reference value for phase

measurement Wake-Up mode

1. Default setting takes place at power-up and after Set Default command

1.3.55

Phase measurement reference register

Address: 37h

Type: RW

Table 86. Phase measurement reference register

Bit

Name

Default

Function

Comments(1)

pm_ref7

pm_ref6

pm_ref5

pm_ref4

pm_ref3

pm_ref2

pm_ref1

pm_ref0

1. Default setting takes place at power-up and after Set Default command.

ST25R3911B

Registers

DS11793 - Rev 6

page 91/116

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