WM8321 datasheet(164/253 Pages) WOLFSON

номер детали	WM8321

подробное описание детали	Processor Power Management Subsystem

PDF	253 Pages

Scroll/Zoom	100%

производитель	WOLFSON [Wolfson Microelectronics plc]

домашняя страница	http://www.wolfsonmicro.com

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164 / 253 page

WM8321

Production Data

PD, February 2012, Rev 4.0

164

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R16418

(4022h)

RTC Time 2

15:0

RTC_TIME

[15:0]

0000_0000

_0000_000

RTC Seconds counter (LSW)

RTC_TIME increments by 1 every second. This is the

16 LSBs.

RTC Time 2

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R16419

(4023h)

RTC Alarm

15:0

RTC_ALM

[15:0]

0000_0000

_0000_000

RTC Alarm time (MSW)

16 MSBs of RTC_ALM

RTC Alarm 1

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R16420

(4024h)

RTC Alarm

15:0

RTC_ALM

[15:0]

0000_0000

_0000_000

RTC Alarm time (LSW)

16 LSBs of RTC_ALM

RTC Alarm 2

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R16421

(4025h)

RTC Control

RTC_VALID

RTC Valid status

0 = RTC_TIME has not been set since Power On Reset

1 = RTC_TIME has been written to since Power On

Reset

RTC_SYNC_B

USY

RTC Busy status

0 = Normal

1 = Busy

The RTC registers should not be written to when

RTC_SYNC_BUSY = 1.

RTC_ALM_EN

RTC Alarm Enable

0 = Disabled

1 = Enabled

6:4

RTC_PINT_FR

EQ [2:0]

000

RTC Periodic Interrupt timeout period

000 = Disabled

001 = 2s

010 = 4s

011 = 8s

100 = 16s

101 = 32s

110 = 64s

111 = 128s

RTC Control

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