CC1000-RWP2 datasheet(46/59 Pages) TI2

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CC1000

SWRS048A

Page 46 of 55

PRESCALER Register (1Ch)

NAME

Default

value

Active

Description

PRESCALER[7:6]

PRE_SWING[1:0]

Prescaler swing. Fractions for

PRE_CURRENT[1:0] = 00

00 : 1

* Nominal Swing

01 : 2/3 * Nominal Swing

10 : 7/3 * Nominal Swing

11 : 5/3 * Nominal Swing

PRESCALER[5:4]

PRE_CURRENT

[1:0]

Prescaler current scaling

00 : 1

* Nominal Current

01 : 2/3 * Nominal Current

10 : 1/2 * Nominal Current

11 : 2/5 * Nominal Current

PRESCALER[3]

IF_INPUT

0 : Nominal setting

1 : RSSI/IF pin is input to IF-strips

PRESCALER[2]

IF_FRONT

0 : Nominal setting

1 : Output of IF_Front_amp is switched to

RSSI/IF pin

PRESCALER[1:0]

Not used

TEST6 Register (for test only, 40h)

NAME

Default

value

Active

Description

TEST6[7]

LOOPFILTER_TP1

1 : Select testpoint 1 to CHP_OUT

0 : CHP_OUT tied to GND

TEST6 [6]

LOOPFILTER_TP2

1 : Select testpoint 2 to CHP_OUT

0 : CHP_OUT tied to GND

TEST6 [5]

CHP_OVERRIDE

1 : use CHP_CO[4:0] value

0 : use calibrated value

TEST6[4:0]

CHP_CO[4:0]

10000

Charge_Pump Current DAC override value

TEST5 Register (for test only, 41h)

NAME

Default

value

Active

Description

TEST5[7:6]

Not used

TEST5[5]

CHP_DISABLE

1 : CHP up and down pulses disabled

0 : normal operation

TEST5[4]

VCO_OVERRIDE

1 : use VCO_AO[2:0] value

0 : use calibrated value

TEST5[3:0]

VCO_AO[3:0]

1000

VCO_ARRAY override value

TEST4 Register (for test only, 42h)

NAME

Default

value

Active

Description

TEST4[7:6]

Not used

TEST4[5:0]

L2KIO[5:0]

100101

Constant setting charge pump current

scaling/rounding factor. Sets Bandwidth of

PLL. Use 3Fh for 9.6 kBaud and higher

CC1000-RWP2 Datasheet(PDF) 46 Page - Texas Instruments

CC1000-RWP2 Datasheet(HTML) 46 Page - Texas Instruments

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