Rf Test Commands; Timing Of Packets In Tx Tasks - Texas Instruments CC253x User Manual

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Transmit task, PRF_TASK_CONF.MODE = 0X, .START_CONF = 0, .REPEAT = 1:
t
Synth
t
Tx
Transmit Packet 0
CMD_TX
Transmit task, PRF_TASK_CONF.MODE = 0X, .START_CONF = 0, .REPEAT = 1:
t
Synth
t
Tx
Transmit Packet 0
CMD_TX
Transmit task, PRF_TASK_CONF.MODE = 1X, .START_CONF = 0, .REPEAT = 1,
no ACK found first time:
t
t
Synth
Tx-Rx
t
Tx
Transmit Packet 0
CMD_TX
Transmit task, PRF_TASK_CONF.MODE = 1X, .START_CONF = 0, .REPEAT = 1,
CRC error on ACK:
t t
Synth
Tx-Rx
t
Tx
Transmit Packet 0
CMD_TX
NOTE: The time given by
denoted t , the time given by
Search
is denoted t . The setup and wait times for the synthesizer, receiver, and transmitter are denoted t
TX-RX
respectively.

25.9.3 RF Test Commands

In Table 25-12, there are listed some commands for modem test purposes. No registers are programmed
by the LLE based on these commands, so all registers must be set up by the MCU. This includes the
frequency word, which is otherwise written by the LLE; see
commands take no parameters, and do not cause the LLE to create any interrupts or to write any end
cause.
SWRU191F – April 2009 – Revised April 2014
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t
Tx_Delay
t
Tx
Transmit Packet 1
t
Tx_Delay
t
Tx-Rx
t
Rx
Sync Search
Receive ACK
t
Retrans
t
Search
t
Rx
Sync Search
t
Retrans
t
Search
t
Rx
Sync Receive
Search ACK 0
PRF_TX_DELAY
is denoted t
PRF_RETRANS_DELAY
Figure 25-13. Timing of Packets in TX Tasks
Copyright © 2009–2014, Texas Instruments Incorporated
t
Tx_Delay
t
Tx
Transmit Packet 2
t
Tx
Retransmit Packet 0
t
Tx
Retransmit Packet 0
PRF_SEARCH_TIME
, the time given by
TX_Delay
is denoted t , and the time given by
Retrans
Section 25.5 on how to program this. These
CC2541 Proprietary Mode Radio
Link Layer Engine
t
Tx
Transmit Packet 1
t
Tx-Rx
t
Rx
Sync Receive
Search ACK 0
t
Tx-Rx
t
Rx
Sync Receive
Search ACK 0
T0537-01
is
PRF_TX_RX
, t , and t ,
Synth TX RX
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