CC1021-RTR1 datasheet(77/91 Pages) TI1

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Not Recommended for New Designs NRND

CC1021

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SWRS045D – JANUARY 2006 – REVISED JANUARY 2015

Table 5-59. RESET_DONE Register (41h, Read Only)

DEFAULT

NAME

ACTIVE

DESCRIPTION

VALUE

RESET_DONE[7]

ADC_RESET_DONE

—

Reset of ADC control logic done

RESET_DONE[6]

AGC_RESET_DONE

—

Reset of AGC (VGA control) logic done

RESET_DONE[5]

GAUSS_RESET_DONE

—

Reset of Gaussian data filter done

RESET_DONE[4]

AFC_RESET_DONE

—

Reset of AFC / FSK decision level logic done

RESET_DONE[3]

BITSYNC_RESET_DONE

—

Reset of modulator, bit synchronization logic and PN9

PRBS generator done

RESET_DONE[2]

SYNTH_RESET_DONE

—

Reset digital part of frequency synthesizer done

RESET_DONE[1]

SEQ_RESET_DONE

—

Reset of power-up sequencing logic done

RESET_DONE[0]

CAL_LOCK_RESET_DONE

—

Reset of calibration logic and lock detector done

Table 5-60. RSSI Register (42h, Read Only)

DEFAULT

NAME

ACTIVE

DESCRIPTION

VALUE

RSSI[7]

—

Not in use, will read 0

RSSI[6:0]

—

Received signal strength indicator.

The relative power is given by RSSI × 1.5 dB in a logarithmic scale.

The VGA gain set by VGA_SETTING must be taken into account. See

Section 5.9.5 for more details.

Table 5-61. AFC Register (43h, Read Only)

DEFAULT

NAME

ACTIVE

DESCRIPTION

VALUE

AFC[7:0]

—

Average received frequency deviation from IF. This 8-bit 2-complement

signed value equals the demodulator decision level and can be used

for AFC.

The average frequency offset from the IF frequency is

ΔF = Baud rate × AFC / 16

Table 5-62. GAUSS_FILTER Register (44h)

DEFAULT

NAME

ACTIVE

DESCRIPTION

VALUE

GAUSS_FILTER[7:0]

—

Readout of instantaneous IF frequency offset from nominal

IF. Signed 8-bit value.

ΔF = Baud rate × GAUSS_FILTER / 8

Table 5-63. STATUS1 Register (45h, for Test Only)

DEFAULT

NAME

ACTIVE

DESCRIPTION

VALUE

STATUS1[7:4]

CAL_DAC[3:0]

—

Status vector defining applied Calibration DAC value

STATUS1[3:0]

CHP_CURRENT[3:0]

—

Status vector defining applied CHP_CURRENT value

Detailed Description

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