FDC2114RGHT datasheet(34/61 Pages) TI1

34 / 61 page

FDC2212, FDC2214, FDC2112, FDC2114

SNOSCZ5A – JUNE 2015 – REVISED JUNE 2015

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INTB_DIS

HIGH_CURRE

RESERVED

NT_DRV

Table 38. Address 0x1A, CONFIG Field Descriptions

Bit

Field

Type

Reset

Description

15:14

ACTIVE_CHAN

R/W

Active Channel Selection

Selects channel for continuous conversions when

MUX_CONFIG.SEQUENTIAL is 0.

b00: Perform continuous conversions on Channel 0

b01: Perform continuous conversions on Channel 1

b10: Perform continuous conversions on Channel 2 (FDC2114,

FDC2214 only)

b11: Perform continuous conversions on Channel 3 (FDC2114,

FDC2214 only)

SLEEP_MODE_EN

R/W

Sleep Mode Enable

Enter or exit low power Sleep Mode.

b0: Device is active.

b1: Device is in Sleep Mode.

RESERVED

R/W

Reserved. Set to b1.

SENSOR_ACTIVATE_SEL

R/W

Sensor Activation Mode Selection.

Set the mode for sensor initialization.

b0: Full Current Activation Mode – the FDC will drive maximum

sensor current for a shorter sensor activation time.

b1: Low Power Activation Mode – the FDC uses the value

programmed in DRIVE_CURRENT_CHx during sensor

activation to minimize power consumption.

RESERVED

R/W

Reserved. Set to b1.

REF_CLK_SRC

R/W

Select Reference Frequency Source

b0: Use Internal oscillator as reference frequency

b1: Reference frequency is provided from CLKIN pin.

RESERVED

R/W

Reserved. Set to b0.

INTB_DIS

R/W

INTB Disable

b0: INTB pin will be asserted when status register updates.

b1: INTB pin will not be asserted when status register updates

HIGH_CURRENT_DRV

R/W

High Current Sensor Drive

b0: The FDC will drive all channels with normal sensor current

(1.5mA max).

b1: The FDC will drive channel 0 with current >1.5mA.

This mode is not supported if AUTOSCAN_EN = b1 (multi-

channel mode)

5:0

RESERVED

R/W

00 0001

Reserved Set to b00’0001

9.6.29 Address 0x1B, MUX_CONFIG

Figure 46. Address 0x1B, MUX_CONFIG

AUTOSCAN_E

RR_SEQUENCE

RESERVED

DEGLITCH

Table 39. Address 0x1B, MUX_CONFIG Field Descriptions

Bit

Field

Type

Reset

Description

AUTOSCAN_EN

R/W

Auto-Scan Mode Enable

b0: Continuous conversion on the single channel selected by

CONFIG.ACTIVE_CHAN register field.

b1: Auto-Scan conversions as selected by

MUX_CONFIG.RR_SEQUENCE register field.

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Product Folder Links: FDC2212 FDC2214 FDC2112 FDC2114

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