11-278
RF2958
Rev A0 050209
Power Control Register 10 (PCNT1)-Address 01010
Power Control Register 11 (PCNT2)-Address 01011
VCOT1 Register 1 (VCOT1)-Address 01100
Test Register 1 (TEST)-Address 11011
This is a test register for internal use only.
Location
Bit Name
Default
Function
PCNT1(17:15)
MID_BIAS(2:0)
000
Used to setup the voltage provided by the PA_BIAS AMPLIFIER to deter-
mine the BIAS VOLTAGE to provide to the PA when the desired output
power is MID_POWER. The MID_BIAS selection will select a VOUT on
PBIAS between 1.6V and 2.6V.
PCNT1(14:9)
P_DESIRED
(5:0)
000000
User selectable desired output power at antenna. The 5 MSB’s are integer
portion in dBm. The LSB is 0.5dBm. Example: +19.5dBm is represented by
100111.
PCNT1(8:3)
PC_OFFSET
(5:0)
000000
User programmable offset to adjust to process/board variations in the
power control loop. This is a 2’s-complement value with the LSB equal to
0.5dB.
PCNT1(2:0)
TX_DELAY
(2:0)
000
User programmable delay to allow a single TX_PE line to be used to enable
the BBP and the radio function. Programmable in 0.5us increments from
0us to 3.5us.
Location
Bit Name
Default
Function
PCNT2(17:12)
MAX_POWER
(5:0)
000000
User programmable MAX output power provided when PABIAS=2.6V. This
allows the power control function to be customized for various PA’s. The 5
MSB’s are integer portion in dBm. The LSB is 0.5dBm.
PCNT2(11:6)
MID_POWER
(5:0)
000000
User programmable MAX output power provided when
PABIAS=MID_BIAS. This allows the power control function to be custom-
ized for various PA’s. The 5 MSB’s are integer portion in dBm. The LSB is
0.5dBm.
PCNT2(5:0)
MIN_POWER
(5:0)
000000
User programmable MAX output power provided when PABIAS=1.6V. This
allows the power control function to be customized for various PA’s. The 5
MSB’s are integer portion in dBm. The LSB is 0.5dBm.
Location
Bit Name
Default
Function
VCOT1(17)
AUX
0
IF VCO Band Current Compensation
0=disabled
1=enabled
VCOT1(16)
AUX1
0
RF VCO Band Current Compensation
0=disabled
1=enabled
VCOT1(15:0)
Reserved
0
Reserved, program to zero (0)
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