WM8802SCFV datasheet(46/65 Pages) WOLFSON

46 / 65 page

WM8802

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PP Rev 1.1 April 2004

Clock source; RDA TA output setting:

DI7

DI6

DI5

DI4

DI3

DI2

DI1

DI0

CAU

CAL

DI15

DI14

DI13

DI12

DI11

DI10

DI9

DI8

CCB address: 0xE8;

Command address: 5

RDTMUT

RDTSTA

RDTSEL

RCKSEL

OCKSEL

SELMTD

Output clock source switching setting

0: Simultaneously switch R system and S system according to

OCKSEL. (initial value)

1: Switch R system according to RCKSEL and fix S system to XIN.

OCKSEL

Clock source setting when SELMTD = 0

0: Use XIN clock as source during PLL lock. (initial value)

1: Use XIN clock as source regardless of PLL status.

RCKSEL

Clock source setting when SELMTD = 1

0: Use XIN clock as source during PLL lock. (initial value)

1: Use XIN clock as source regardless of PLL status.

RDTSEL

RDATA output setting during PLL unlock

0: Output SDIN data during PLL unlock. (initial value)

1. Mute during PLL unlock.

RDTSTA

RDATA output setting

0: According to RDTSEL (initial value)

1: Output SDIN input data regardless of PLL status.

RDTMUT

RDATA mute setting

0: Output data selected with RDTSEL.

1: Muted

When the oscillation amplifier is set to permanent continuous operation using AMPOPR[0:1] or if

changes are set not to be reflected to the error flag using FSERR, OCKSEL and RCKSEL can switch

the clock source while maintaining the RERR status. However, RERR outputs an error during

switching if none of these settings are performed.

A clock synchronized to the SDIN input data is selected to input data to SDIN.

The XIN source can be switched while maintaining the PLL locked status. However, since clock and

data output switching can be set individually for each, it is recommended to select mute or SDIN data

for the output data during XIN source switching.

If AMPOPR[0:1] is set to automatically stop the oscillation amplifier during PLL locked, XIN source

switching from the PLL locked status is executed only after the resonator is oscillating stably. Output

data switching is also done at this time according to XIN source switching.

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