Command Strobe/CSMA-CA Processor
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Opcode: 0xD3
7 6 5 4 3 2 1 0
1 1 0 1 0 0 1 1
23.14.9.21 STXON
Function: Enable TX after calibration
Description: The STXON instruction enables TX after calibration. The instruction waits for the radio to
acknowledge the command before executing the next instruction. Sets a bit in RXENABLE if
SET_RXENMASK_ON_TX is set
Operation: STXON
Opcode: 0xD9
7 6 5 4 3 2 1 0
1 1 0 1 1 0 0 1
23.14.9.22 STXONCCA
Function: Enable calibration and TX if CCA indicates a clear channel
Description: The STXONCCA instruction enables TX after calibration if CCA indicates a clear
channel.
Operation: STXONCCA
Opcode: 0xDA
7 6 5 4 3 2 1 0
1 1 0 1 1 0 1 0
23.14.9.23 SSAMPLECCA
Function:
Sample the current CCA value to SAMPLED_CCA
Description:
The current CCA value is written to SAMPLED_CCA in XREG.
Operation: SSAMPLECCA
Opcode: 0xDB
7 6 5 4 3 2 1 0
1 1 0 1 1 0 1 1
23.14.9.24 SRFOFF
Function: Disable RX/TX and frequency synthesizer.
Description: The SRFOFF instruction disables RX/TX and the frequency synthesizer.
Operation: SRFOFF
Opcode: 0xDF
7 6 5 4 3 2 1 0
1 1 0 1 1 1 1 1
260
CC253x Radio SWRU191C–April 2009–Revised January 2012
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