Polarity inversion register

STMPE1600

18/27

Doc ID 16938 Rev 3

9

Polarity inversion register

PINV

Polarity inversion register

Address:

0x16, 0x17

Type:

RW

Reset:

0

Description:

Polarity inversion register.

This register allows the user to invert the polarity of the input port register data. If a bit

in this register is set (written with ‘1’), the Input Port Data polarity is inverted. If a bit in

this register is cleared (written with a ‘0’), the Input Port Data polarity is retained. This

is for Active HIGH or Active LOW operation register. The polarity of the read register

can be inverted with this register.

9.1

Power supply

The STMPE1600 operates with a single power supply VCC that ranges from 1.65V to 3.6V.

reset.

9.2

Reset

The STMPE1600 is equipped with an internal POR circuit that holds the device in reset

In the duration when reset pin is asserted, all GPIO are reset and default to input states.

15

14

13

12

11

10

9876543

2

1

0

PINV

15

PINV

14

PINV

13

PINV

12

PINV

11

PINV

10

PINV9 PINV8 PINV7 PINV6 PINV5 PINV4 PINV3

PINV2

PINV1

PINV0

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

[15:0] PINV[x]: Polarity inversion register (where x = 15 to 0)

Writing a ‘1’ to the PINV[x] bit will enable polarity inversion on the Input Port. Writing a ‘0’, the

input port polarity is retained. The reset value is 0.