STMPE1601 datasheet(19/61 Pages) STMICROELECTRONICS

부품명	STMPE1601

상세설명	16-bit enhanced port expander with keypad and PWM controller Xpander Logic

PDF	61 Pages

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제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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19 / 61 page

STMPE1601

System controller

19/61

SYS_CTRL_2

System control register 2

Address:

0x03

Type:

R/W

Reset:

0x00

Description:

System control register

210

RESERVED

VIO_OFF

AUTOSLEEP_EN

SLEEP_2

SLEEP_1

SLEEP_0

000

[7] RESERVED

[6] RESERVED

[5] RESERVED

[4] VIO_OFF:

Writing a ‘1’ to this bit is mandatory before shuting off the VIO supply while maintaining the

VCC supply.

This ensure that the level shifters for GPIOs 15-8 are properly powered down so as not to

induce high current and also not to affect the integrity of any external signals that are on the

bus where these GPIOs are connected.

[3] AUTOSLEEP_EN:

“1” to enable auto-sleep feature. “0” to disable auto-sleep.

[2:0] SLEEP:

000 for 4 mS delay

001 for 16 mS delay

010 for 32 mS delay

011: for 64 mS delay

100: for 128 mS delay

101: for 256 mS delay

110: for 512 mS delay

111: for 1024 mS delay

STMPE1601 데이터시트(PDF) 19 Page - STMicroelectronics

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