AD7143_17 datasheet(38/57 Pages) AD

Il numero della parte	AD7143

Spiegazioni elettronici	Programmable Controller for Capacitance Touch Sensors

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Produttore elettronici	AD [Analog Devices]

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AD7143

Rev. 0 | Page 37 of 56

Table 18. AMB_COMP_CTRL0 Register

Address

Data Bit

Default

Type

Name

Description

[3:0]

0

R/W

FF_SKIP_CNT

Fast filter skip control (N+1)

0000 = no sequence of results are skipped

0001 = one sequence of results is skipped for every one

allowed into Fast FIFO

0010 = two sequences of results are skipped for every

one allowed into Fast FIFO

1011 = maximum value = 12 sequences of results are

skipped for every one allowed into Fast FIFO

[7:4]

F

FP_PROXIMITY_CNT

Full power mode proximity period

[11:8]

F

LP_PROXIMITY_CNT

Low power mode proximity period

[13:12]

0

PWR_DOWN_TIMEOUT

Full power to low power mode time out control

00 = 1.25 × (FP_PROXIMITY_CNT)

01 = 1.50 × (FP_PROXIMITY_CNT)

10 = 1.75 × (FP_PROXIMITY_CNT)

11 = 2.00 × (FP_PROXIMITY_CNT)

[14]

0

FORCED_CAL

Forced calibration control

0 = normal operation

1 = forces all conversion stages to recalibrate

0x002

[15]

0

CONV_RESET

Conversion reset control (self-clearing)

0 = normal operation

1 = resets the conversion sequence back to STAGE0

Table 19. AMB_COMP_CTRL1 Register

Address

Data Bit

Default

Type

Name

Description

[7:0]

64

PROXIMITY_RECAL_LVL

Proximity recalibration level

[13:8]

1

PROXIMITY_DETECTION_RATE

Proximity detection rate

0x003

[15:14]

0

R/W

SLOW_FILTER_UPDATE_LVL

Slow filter update level

Table 20. AMB_COMP_CTRL2 Register

Address

Data Bit

Default

Type

Name

Description

0x004

[9:0]

3FF

R/W

FP_PROXIMITY_RECAL

Full power mode proximity recalibration time control

[15:10]

3F

LP_PROXIMITY_RECAL

Low power mode proximity recalibration time control

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