TSC2014IYZGR datasheet(47/62 Pages) TI2

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TSC2014

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SBAS484B – SEPTEMBER 2010 – REVISED DECEMBER 2016

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7.6.5 Configuration Register 2

Configuration register 2 (CFR2) defines the preprocessor configuration.

Figure 41. Configuration Register 2 (Reset Value = 0000h)

MSB

D15

D14

D13

D12

D11

D10

LSB

PINT

TZ1

TZ0

AZ1

AZ0

Resrvd

MAVE

AUX

MAVE

TEMP

7.6.5.1 PINTS1 (default 0)

This bit controls the output format of the PINTDAV pin. When this bit is set to '0', the output format is shown as

the AND-form of internal signals of PENIRQ and DAV). When this bit is set to '1', PINTDAV outputs PENIRQ

only.

7.6.5.2 PINTS0 (default 0)

This bit selects what is output on the PINTDAV pin. If this bit set to '0', the output format of PINTDAV depends on

the selection made on the PINTS1 bit. If this bit set to '1', the internal signal of DAV is output on PINTDAV.

Table 20. PINTSx Selection

PINTS1

PINTS0

PINTDAV PIN OUTPUT =

AND combination of PENIRQ (active low) and DAV (active high).

Data available, DAV (active low).

Interrupt, PENIRQ (active low) generated by pen-touch.

Data available, DAV (active low).

7.6.5.3 M1, M0, W1, W0 (default 0000)

Preprocessing MAV filter control. Note that when the MAV filter is processing data, the STS bit and the

corresponding DAV bits in the status register indicate that the converter is busy until all conversions necessary

for the preprocessing are complete. The default state for these bits is 0000, which bypasses the preprocessor.

These bits are the same whether reading or writing.

7.6.5.4

TZ1 and TZ0, or AZ1 and AZ0 (default 00)

Zone detection bit definition (for TEMP or AUX measurements). TZ1 and TZ0 are for the TEMP measurement.

AZ1 and AZ0 are for the AUX measurement. The action taken in zone detection is to store the processed data in

the corresponding data registers and to update the corresponding DAV bits in status register. If the processed

data do not meet the selected criteria, these data are ignored and the corresponding DAV bits are not updated.

When zone detection is disabled, the processed data are simply stored in the corresponding data registers and

the corresponding DAV bits are updated without any comparison of criteria. Note that the converted samples are

always processed according to the setting of the MAVE bits for AUX/TEMP before zone detection takes effect.

See Table 24 for thresholds.

Table 21. Zone Detection Bit Definition

TZ1/AZ1

TZ0/AZ0

FUNCTION

Zone detection is disabled.

When the processed data are below low threshold

When the processed data are between low and high thresholds

When the processed data are above high threshold

7.6.5.5 MAVE (default is 00000)

MAV filter function enable bit. When the corresponding bit is set to '1', the MAV filter setup is applied to the

corresponding measurement.

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