CC2430
Radio : Radio Registers
FSMTCH (0xDF20)
Bit
Name
Reset
R/W
Description
The time in 5 us steps between the time the RX chain is
enabled and the demodulator and AGC is enabled. The RX
chain is started when the band pass filter has been
calibrated (after 6.5 symbol periods).
7:5
TC_RXCHAIN2RX[2:0]
011
R/W
The time in advance the RXTX switch is set high, before
4:2
1:0
TC_SWITCH2TX[2:0]
TC_PAON2TX[3:2]
110
10
R/W
R/W
enabling TX. Unit is
µs.
The time in advance the PA is powered up before enabling
TX. Unit is s.
µ
FSMTCL (0xDF21)
Bit
Name
Reset
R/W
Description
The time in advance the PA is powered up before enabling
7:6
TC_PAON2TX[1:0]
10
R/W
TX. Unit is
µs.
The time after the last chip in the packet is sent, and the
5:3
2:0
TC_TXEND2SWITCH[2:0]
TC_TXEND2PAOFF[2:0]
010
100
R/W
R/W
rxtx switch is disabled. Unit is s.
µ
The time after the last chip in the packet is sent, and the PA
is set in power-down. Also the time at which the modulator
is disabled. Unit is µs.
MANANDH (0xDF22)
Bit
Name
Reset
R/W
Description
The VGA_RESET_N signal is used to reset the peak
detectors in the VGA in the RX chain.
7
VGA_RESET_N
1
R/W
Reserved, read as 0
6
5
BIAS_PD
1
1
R/W
R/W
The BALUN_CTRL signal controls whether the PA should
receive its required external biasing (1) or not (0) by
controlling the RX/TX output switch.
BALUN_CTRL
RXTX signal: controls whether the LO buffers (0) or PA
buffers (1) should be used.
4
RXTX
1
R/W
Powerdown of prescaler.
3
2
1
PRE_PD
1
1
1
R/W
R/W
R/W
Powerdown of PA (negative path).
PA_N_PD
PA_P_PD
Powerdown of PA (positive path). When PA_N_PD=1 and
PA_P_PD=1 the up conversion mixers are in powerdown.
Powerdown of TX DACs.
0
DAC_LPF_PD
1
R/W
CC2430 Data Sheet (rev. 2.1) SWRS036F
Page 194 of 211
TAOS [ TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS ]
