STMPE16M31 datasheet(64/85 Pages) STMICROELECTRONICS

Part #	STMPE16M31

Description	S-Touch® 16/24-channel touchkey controller with PWM and ratio engines

PDF	85 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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64 / 85 page

Touch sensor controller

STMPE16M31, STMPE24M31

64/85

Doc ID 16174 Rev 4

3rd byte [23:16]

543

210

Touch

TIME_STAMP[6:0]

000

[9:0] POS

Position of the touch in ratio engine sensors

[15:10] MOV

Movement of the touch location as a function of POS1 – POS0, where POS1 is current position

and POS0 is position before.

[22:16] TIME_STAMP

Delay between current and previous samples in unit of time

[23] TOUCH

This bit indicates the status of the finger

‘1’ indicates a finger touches the slider/wheel

‘0’ indicates no touch is detected

Ratio Engine generates an interrupt on the event of transition from touch to no touch. When

host receive the interrupt, it needs to check this bit to verify the presence of the finger. When

touch is detected, the data in RE1_POS and RE2_POS are valid, otherwise it means finger is

lifted up

Obsolete

Product(s)

- Obsolete

Product(s)

STMPE16M31 Datasheet(PDF) 64 Page - STMicroelectronics