CC1010-RTY1 datasheet(115/152 Pages) TI

115 / 152 page

CC1010

SWRS047

Page 115 of 152

TEST5 (0xFE) – PLL Test Register 5

Bit

Name

R/W

Reset value

Description

7:6

0x00

Reserved, read as 0

CHP_DISABLE

R/W

PLL Charge Pump disable

0 : Charge Pump is enabled (normal function)

1 : Charge Pump is disabled

VCO_OVERRIDE

R/W

VCO array override

0 : VCO array is not overridden (normal function)

1 : VCO array is set by

VCO_AO(3:0)

3:0

VCO_AO(3:0)

R/W

0x08

VCO Array override value

TEST4 (0xFD) – PLL Test Register 4

Bit

Name

R/W

Reset value

Description

7:6

R/W

0x00

Reserved, read as 0

5:0

L2KIO

R/W

0x25

Constant charge pump current scaling / rounding

factor. Sets bandwidth of PLL. Default value is

0x25 and shall be used for all modes

TEST3 (0xFC) – PLL Test Register 3

Bit

Name

R/W

Reset value

Description

7:5

0x00

Reserved, read as 0

BREAK_LOOP

R/W

Break frequency synthesis PLL

0 : PLL loop closed (normal operation)

1 : PLL loop open

3:0

CAL_DAC_OPEN

(3:0)

R/W

100

Calibration DAC override value, active when

BREAK_LOOP is set

TEST2 (0xFB) – PLL Test Register 2

Bit

Name

R/W

Reset value

Description

7:5

0x00

Reserved, read as 0

4:0

CHP_CURRENT

(4:0)

None

Status vector defining the applied charge pump

current

TEST1 (0xFA) – PLL Test Register 1

Bit

Name

R/W

Reset value

Description

7:4

0x00

Reserved, read as 0

3:0

CAL_DAC(3:0)

None

Status vector defining the applied calibration

DAC value

TEST0 (0xF9) – PLL Test Register 0

Bit

Name

R/W

Reset value

Description

7:4

0x00

Reserved, read as 0

3:0

VCO_ARRAY(3:0)

0x00

Status vector defining the applied VCO array

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