WM8352 datasheet(120/336 Pages) WOLFSON

tên linh kiện	WM8352

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WM8352

Production Data

PD, February 2011, Rev 4.4

120

14.5.2

CONFIGURATION MODE 10

In Configuration Mode 10, the following general default settings apply:

PARAMETER

DESCRIPTION

ON polarity

ON_POL = 1

ON pin is Active Low

USB power source

USB_SLV_500MA = 1

Selects 500mA limit in USB slave

Watchdog timer

WDOG_MODE [1:0] = 00

Watchdog is disabled

Control Interface

SPI_3WIRE = 0

SPI_4WIRE = 0

SPI_CFG = 0

Control Interface is 2-wire mode

32kHz oscillator

OSC32K_ENA = 1

32kHz Oscillator is enabled

Real Time Clock

RTC_TICK_ENA = 1

RTC_CLKSRC = 0

Real Time Clock is enabled, driven

by the internal 32kHz oscillator

LDO1

LDO1_PIN_MODE = 0

LDO1_PIN_EN = 0

LDO1 controlled as normal via

Crystal detect

mode

Crystal detect mode is enabled.

(/RST output is held low until

32kHz oscillator is valid.)

The default voltages and the power-up sequence for all DC-DCs and LDOs in Configuration Mode 10

are shown below in Table 67 and Figure 67.

The time delay between each time slot is approximately 1.28ms.

Note that the Limit Switch is not enabled automatically in Configuration Mode 10; as a result, the

Limit Switch remains open when the WM8352 enters the ACTIVE state.

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