Datasheet

TPS65070, TPS65072, TPS65073

TPS650731, TPS650732, TPS650701, TPS650702, TPS650721

SLVS950G –JULY 2009–REVISED MAY 2013

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TSCMODE. Register Address: 08h

TSCMODE B7 B6 B5 B4 B3 B2 B1 BO

Bit name and function TSC_M2 TSC_M1 TSC_M0

Default 0 0 0 0 0 1 1 1

Set by signal

Default value loaded by: UVLO UVLO UVLO

Read/write R R R R R R/W R/W R/W

Bit 3..0 MODE SELECT BITS FOR THE TOUCH SCREEN INTERFACE

Note: Data conversions using the touch screen interface require setting the touch screen mode with register

TSCMODE and selecting the analog input channel for the ADC according to the following table.

Measurement of x-position:

• Set TSCMODE to 000 to select x-position measurement

• Set Bit AD ENABLE=1 to provide power to the ADC.

• Set input select for the ADC in register ADCONFIG to 1110 (AD_IN14 selected).

• Start a conversion by setting CONVERSION START=1; wait until END OF CONVERSION=1

• Read register ADRESULT_1 and ADRESULT_2

TSC_M2 TSC_M1 TSC_M0 TSX1 TSX2 TSY1(AD_ TSY2(AD_ MODE MEASUREMENT

(AD_IN1) (AD_IN2) IN3) IN4)

0 0 0 TSREF GND A/D HiZ X-Position Voltage TSY1

0 0 1 A/D HiZ TSREF GND Y-Position Voltage TSX1

0 1 0 TSREF TSREF GND GND Pressure Current TSX1 and

TSX2

0 1 1 TSREF GND HiZ HiZ Plate X Current TSX1

1 0 0 HiZ HiZ TSREF GND Plate Y Current TSY1

1 0 1 V2 V2 GND GND TSC standby Voltage TSX1 and

TSX2

1 1 0 A/D A/D A/D A/D A/D Voltage measurement

with ADC

1 1 1 open open open open TSC and ADC

disabled (no interrupt

generation)

ADRESULT_1. Register Address: 09h

ADRESULT_1 B7 B6 B5 B4 B3 B2 B1 BO

Bit name and function AD_BIT7 AD_BIT6 AD_BIT5 AD_BIT4 AD_BIT3 AD_BIT2 AD_BIT1 AD_BIT0 LSB

Default x x x x x x x x

Set by signal

Default value loaded

R R R R R R R R

by:

Read/write

Product Folder Links: TPS65070 TPS65072 TPS65073 TPS650731 TPS650732 TPS650701 TPS650702

TPS650721