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CC2420Z-RTR1 数据表(PDF) 78 Page - Texas Instruments

部件名 CC2420Z-RTR1
功能描述  2.4 GHz IEEE 802.15.4 / ZigBee-ready RF Transceiver
PDF  92 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

CC2420Z-RTR1 数据表(HTML) 78 Page - Texas Instruments

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CC2420
SWRS041B
Page 78 of 89
FSTST3 (0x2A) - Frequency Synthesizer Test Register 3
Bit
Field Name
Reset
R/W
Description
15
CHP_CAL_DISABLE
1
R/W
Disable charge pump during VCO calibration when set.
14
CHP_CURRENT_OE
0
R/W
Charge pump current override enable
0 : Charge pump current set by calibration
1 : Charge pump current set by START_CHP_CURRENT
13
CHP_TEST_UP
0
R/W
Forces the CHP to output "up" current when set
12
CHP_TEST_DN
0
R/W
Forces the CHP to output "down" current when set
11
CHP_DISABLE
0
R/W
Set to manually disable charge pump by masking the up and
down pulses from the phase-detector.
10
PD_DELAY
0
R/W
Selects short or long reset delay in phase detector:
0: Short reset delay
1: Long reset delay
9:8
CHP_STEP_PERIOD[1:0]
2
R/W
The charge pump current value step period:
0: 0.25 us
1: 0.5 us
2: 1 us
3: 4 us
7:4
STOP_CHP_CURRENT[3:0]
13
R/W
The charge pump current to stop at after the current is stepped
down from START_CHP_CURRENT after VCO calibration is
complete. The current is stepped down periodically with intervals
as defined in CHP_STEP_PERIOD.
3:0
START_CHP_CURRENT[3:0]
13
R/W
The charge pump current to start with after VCO calibration is
complete. The current is then stepped down periodically to the
value STOP_CHP_CURRENT with intervals as defined in
CHP_STEP_PERIOD.
Also used for overriding the charge pump current when
CHP_CURRENT_OE=’1’
RXBPFTST (0x2B) - Receiver Bandpass Filters Test Register
Bit
Field Name
Reset
R/W
Description
15
-
0
W0
Reserved, write as 0.
14
RXBPF_CAP_OE
0
R/W
RX bandpass filter capacitance calibration override enable.
13:7
RXBPF_CAP_O[6:0]
0
R/W
RX bandpass filter capacitance calibration override value.
6:0
RXBPF_CAP_RES[6:0]
0
R
RX bandpass filter capacitance calibration result.
0: Minimum capacitance in the feedback.
1: Second smallest capacitance setting.
…
127: Maximum capacitance in the feedback.
FSMSTATE (0x2C) - Finite state machine information
Bit
Field Name
Reset
R/W
Description
15:6
-
0
W0
Reserved, write as 0.
5:0
FSM_CUR_STATE[5:0]
0
R
Provides the current state of the FIFO and Frame Control
(FFCTRL) finite state machine. See the Radio control state
machine section on page 43 for details.



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