STM8T143 datasheet(32/65 Pages) STMICROELECTRONICS

Part #	STM8T143

Description	Single-channel capacitive sensor for touch and proximity detection

PDF	65 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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32 / 65 page

Device operation

STM8T143

32/65

DocID18315 Rev 6

Frame format

The content of the data frame is described in Table 6.

6.3

Output polarity

The polarity can be chosen to define POUT and TOUT active state during a detection event

such as high or low.

When the device is configured in output active low, pin 8 is in open drain configuration.

When the device is configured in output active high, pin 8 is in push-pull configuration.

Table 6. Data streaming frame

Byte #

Bit

Description

[7:0]

Signal burst count (MSB)

[15:8]

Signal burst count (LSB)

[23:16]

Reference burst count (MSB)

[31:24]

Reference burst count (LSB)

AET processing

Proximity event detected

Touch event detected

OUT state indication

Reserved

ICS bit 2

ICS bit 1

ICS bit 0

EPCC bit 4

EPCC bit 3

EPCC bit 2

EPCC bit 1

EPCC bit 0

[55:54]

Reserved

EPCC bit 5

Touch threshold bit 2

Touch threshold bit 1

Touch threshold bit 0

Proximity threshold bit 1

Proximity threshold bit 0

[63:56]

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STM8T143 Datasheet(PDF) 32 Page - STMicroelectronics

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