Texas Instruments CC1020, Manual

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CC1020
SWRS046H – NOVEMBER 2006 – REVISED MARCH 2015 www.ti.com
Table 5-57. TEST7 Register (27h, for Test Only)
DEFAULT
REGISTER NAME ACTIVE DESCRIPTION
VALUE
TEST7[7:6] — 0 — Reserved, write 0
TEST7[5:4] VGA1O[1:0] 0 — Override value to VGA stage 1
TEST7[3:2] VGA2O[1:0] 0 — Override value to VGA stage 2
TEST7[1:0] VGA3O[1:0] 0 — Override value to VGA stage 3
Table 5-58. STATUS Register (40h, Read Only)
DEFAULT
REGISTER NAME ACTIVE DESCRIPTION
VALUE
STATUS[7] CAL_COMPLETE — H Set to 0 when PLL calibration starts, and set to 1 when calibration has
finished
STATUS[6] SEQ_ERROR — H Set to 1 when PLL failed to lock during automatic power-up
sequencing
STATUS[5] LOCK_INSTANT — H Instantaneous PLL lock indicator
STATUS[4] LOCK_CONTINUOUS — H
PLL lock indicator, as defined by LOCK_ACCURACY.
Set to 1 when PLL is in lock
STATUS[3] CARRIER_SENSE — H Carrier sense when RSSI is above CS_LEVEL
STATUS[2] LOCK — H Logical level on LOCK pin
STATUS[1] DCLK — H Logical level on DCLK pin
STATUS[0] DIO — H Logical level on DIO pin
Table 5-59. RESET_DONE Register (41h, Read Only)
DEFAULT
REGISTER NAME ACTIVE DESCRIPTION
VALUE
RESET_DONE[7] ADC_RESET_DONE — H Reset of ADC control logic done
RESET_DONE[6] AGC_RESET_DONE — H Reset of AGC (VGA control) logic done
RESET_DONE[5] GAUSS_RESET_DONE — H Reset of Gaussian data filter done
RESET_DONE[4] AFC_RESET_DONE — H Reset of AFC / FSK decision level logic done
RESET_DONE[3] BITSYNC_RESET_DONE — H Reset of modulator, bit synchronization logic and PN9
PRBS generator done
RESET_DONE[2] SYNTH_RESET_DONE — H Reset digital part of frequency synthesizer done
RESET_DONE[1] SEQ_RESET_DONE — H Reset of power-up sequencing logic done
RESET_DONE[0] CAL_LOCK_RESET_DONE — H Reset of calibration logic and lock detector done
Table 5-60. RSSI Register (42h, Read Only)
DEFAULT
REGISTER NAME ACTIVE DESCRIPTION
VALUE
RSSI[7] — — — Not in use, will read 0
RSSI[6:0] 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.
80 Detailed Description
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