TSC2014IYZGR datasheet(21/62 Pages) TI2

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N Acquired

Data

N m asu

rementsinput

intotemporaryarray

Sortby

descendingorder

Averagingoutp t

fromwindowW

M=1

M>1andW=1

Median value

fromarrayM

M>1andW>1

Averagingoutp t

fromwindowW

TSC2014

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SBAS484B – SEPTEMBER 2010 – REVISED DECEMBER 2016

Product Folder Links: TSC2014

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NOTE

The default setting for MAVF is MVF (median value filter with averaging bypassed) for any

invalid configuration. For example, if (M1, M0, W1, W0) = (1,0,1,0), the MAVF performs as

it was configured for (1,0,0,0), median filter only with filter size = 7 and no averaging. The

only exception is M > 1 and (W1, W0) = (1,1). This setting is reserved and should not be

used.

Table 3. Combined MAV Filter Setting

INTERPRETATION

N =

OUTPUT

= 1

Bypass both MAF and AVF

The converted result

= 1

> 1

Bypass MVF only

Average of W converted results

> 1

= 1

Bypass AVF only

Median of M converted results

> 1

M > W

Average of middle W of M converted results with the median

counted twice

The MAV filter is available for all analog inputs including the touch screen inputs, temperature measurements

TEMP1 and TEMP2, and the AUX measurement.

Figure 22. MAV Filter Operation (patent pending)

7.3.4.7 Zone Detection

The Zone Detection unit is capable of screening all processed data from the MAVF and retaining only the data of

interest (data that fit the prerequisite). This unit can be programmed to send an alert if a predefined condition set

by two threshold value registers is met. Three different zones may be set:

1. Above the upper limit (X

≥ Threshold High)

2. Between the two thresholds (Threshold Low < X < Threshold High)

3. Below the lower limit (X

≤ Threshold Low)

The AUX and temperatures TEMP1 and TEMP2 have separate threshold value registers that can be enabled or

disabled. This function is not available to the touch screen inputs. Once the preset condition is met, the DAV

output to the PINTDAV pin is pulled low and the corresponding DAV bit is set.

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