STMPE1208S datasheet(30/51 Pages) STMICROELECTRONICS

No. de pieza	STMPE1208S

Descripción Electrónicos	Xpander Logic with 12-channel touchkey

PDF	51 Pages

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Fabricante Electrónico	STMICROELECTRONICS [STMicroelectronics]

Página de inicio	http://www.st.com

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STMPE1208S

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INT_CLR

Interrupt clear register

Address:

0x27

Type:

Reset:

0x00

Description:

If the corresponding bit in the INT_PENDING register is set, system software must

write '1' to this register to clear the bits in INT_PENDING register.

BEEP_PERIOD

Beep period

Address:

0x28

Type:

R/W

Reset:

0x00

Description:

Beep period

7654

EOC

EINT

I2A

A2I

TOUCH

[7] RESERVED

[6] EOC:

End of calibration.

[5] EINT:

EINT interrupt sources (GPIO input) changes.

[4:3] RESERVED

[2] I2A:

SLEEP to active transition

[1] A2I:

Active to idle transition

[0] TOUCH:

Touch detect.

7654

BEEP_PERIOD [7:0]

[7:0] BEEP_PERIOD:

Period = Beep Period [7:0] * 8* System Clock Period

System Clock Period = 0.625

μs (1.6 MHz) to 5 μs (200 KHz)

Period of Beep (min) = 0.625

μs * 8* 1 = 5 μs

Period of Beep (max) = 5

μs * 8* 255 = 10 ms

STMPE1208S Datasheet(PDF) 30 Page - STMicroelectronics

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