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STw5094A

Control Register CR21 Functions (Address: 0x15)

*: state at power on initialization

X: reserved write 0

Note: In Audio mode or when AMCK Master Clock is selected, the true frequency value is obtained by multiplying the value of the table (F1/

F2 Tone Frequency) by the following constant:

6144000·(AMCK_DIV+2), where AMCK_DIV is the content of CR18, bits1-0.

76

5

4

3

210

Function

MD(1:0)

CFM(1:0)

SRS

PU

0

0

1

1

0

1

0

1

Voice Mode

*

Audio Mode.

Tone Only Mode.

FM Mode.

0

0

1

0

1

X

The Master Clock Input for Tone Only and FM Mode is AUXCLK*

The Master Clock Input for Tone Only and FM Mode is MCLK

The Master Clock Input for Tone Only and FM Mode is AMCK

XX

0

1

Normal Operation

*

Software Reset, all registers are set to their default.

0

1

Device is in Power Down

*

Device is in Power Up