STMPE1601 datasheet(37/61 Pages) STMICROELECTRONICS

Numer części	STMPE1601

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

PDF	61 Pages

Scroll/Zoom	100%

Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

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37 / 61 page

STMPE1601

Basic PWM controller

37/61

PWM_n_TRIGGER_n = 0 - 3

PWM trigger register n = 0 - 3

Address:

0x52, 0x56, 0x5A, 0x5E

Type:

Reset:

0x00

Description:

Enable use of trigger on PWM_n.

765

432

RESET

Edge

MODE

RELOAD

GS2

GS1

GS0

000

[7] RESET: Always read ‘0’

S/W writes ‘1’ to reset counter in WDT mode

Writing ‘1’ in PWM/one-shot has no effect.

Writing ‘0’ has no effect in all modes.

[6] EDGE:type of logic transition to be detected for trigger source.

0: low-to-high

1: hi-to-low

[5] RESERVED

[4] MODE:

0: one-shot trigger mode

1: watch-dog timer mode

This bit is only valid if the ALT bits in the Channel_function_En register is set to ‘1’.

‘1’ for Manual Reload

[3] RELOAD:

‘0’ for Auto-Reload

‘1’ for Manual Reload

[2:0] GS2:0:

Trigger source select

000: GPIO-4

001: GPIO-5

010: GPIO-6

011: GPIO-7

100: GPIO-9

101: GPIO-10

110: GPIO-11

111: GPIO-12

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