CAP1206 datasheet(32/63 Pages) MICROCHIP

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CAP1206

DS00001567B-page 32

 2013-2015 Microchip Technology Inc.

5.10

Averaging and Sampling Configuration Register

The Averaging and Sampling Configuration register controls the number of samples taken and the target sensing cycle

time for sensor inputs enabled in the Active state.

Bits 6 - 4 - AVG[2:0] - Determines the number of samples that are taken for all channels enabled in the Active state

during the sensing cycle as shown in Table 5-17. All samples are taken consecutively on the same channel before the

next channel is sampled and the result is averaged over the number of samples measured before updating the mea-

sured results.

For example, if CS1, CS2, and CS3 are sampled during the sensing cycle, and the AVG[2:0] bits are set to take 4 sam-

ples per channel, then the full sensing cycle will be: CS1, CS1, CS1, CS1, CS2, CS2, CS2, CS2, CS3, CS3, CS3, CS3.

TABLE 5-15:

M_PRESS BIT DECODE

M_PRESS[3:0]

M_PRESS Settings

35ms

70ms

105ms

140ms

175ms

210ms

245ms

280ms (default)

315ms

350ms

385ms

420ms

455ms

490ms

525ms

560ms

TABLE 5-16:

AVERAGING AND SAMPLING CONFIGURATION REGISTER

Addr

R/W

Default

24h

R/W

Averaging and

Sampling

Config

AVG[2:0]

SAMP_TIME[1:0]

CYCLE_TIME

[1:0]

39h

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