CC2400 Chipcon AS, CC2400 Datasheet - Page 65

• Manufacturer Part Number: CC2400
• Description: 2.4 GHz RF Transceiver
• Manufacturer: Chipcon AS

FSTST2 (0x1C) - Frequency Synthesiser Test Register 2
15
14:13
12
11:6
5:0
FSTST3 (0x1D) - Frequency Synthesiser Test Register 3
15:14
13
12
11
10
9:8
7:4
3:0
Chipcon AS
Bit
Bit
Field Name
-
VCO_CURCAL_SPEED[1:0]
VCO_CURRENT_OE
VCO_CURRENT_O[5:0]
VCO_CURRENT_RES[5:0]
Field Name
-
CHP_TEST_UP
CHP_TEST_DN
CHP_DISABLE
PD_DELAY
CHP_STEP_PERIOD[1:0]
STOP_CHP_CURRENT[3:0]
START_CHP_CURRENT
[3:0]
SmartRF
®
CC2400 PRELIMINARY Datasheet (rev. 1.1), 2003-10-02
Reset
0
0
0
24
-
Reset
0
0
0
0
0
2
13
13
R/W
W0
R/W
R/W
R/W
R
R/W
W0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
SmartRF
Description
Reserved, write as 0.
VCO current calibration speed:
0: Normal
1: Double speed
2: Half speed
3: Undefined.
VCO current manual override enable.
VCO current override value (current A).
The resulting VCO current setting from last calibration.
Description
Reserved, write as 0.
When
When
current.
Set to disable charge pump during VCO calibration.
Selects short or long reset delay in phase detector:
0: Short reset delay
1: Long reset delay
The charge pump current value step period:
0: 0.25 us
1: 0.5 us
2: 1 us
3: 4 us
The charge pump current to stop at after the current is stepped
down from
complete. The current is stepped down periodically with intervals
as defined in
The charge pump current to start with after VCO calibration is
complete. The current is then stepped down periodically to the
value
CHP_STEP_PERIOD.
STOP_CHP_CURRENT
CHP_DISABLE=1
CHP_DISABLE=1
START_CHP_CURRENT
CHP_STEP_PERIOD
®
forces the CHP to output "up" current.
forces the CHP to output "down"
CC2400
with intervals as defined in
.
after VCO calibration is
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