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AT86RF232
7.1.5 Register Description
Register 0x01 (TRX_STATUS):
The read-only register TRX_STATUS signals the present state of the radio transceiver
as well as the status of a CCA operation.
Figure 7-8 . Register TRX_STATUS.
Bit
7
6
5
4
0x01
Read/Write
Reset value
Bit
CCA_DONE
R
0
3
CCA_STATUS
R
0
2
reserved
R
0
1
TRX_STATUS
R
0
0
TRX_STATUS
0x01
TRX_STATUS
TRX_STATUS
Read/Write
Reset value
R
0
R
0
R
0
R
0
? Bit 4:0 - TRX_STATUS
The register bits TRX_STATUS signals the current radio transceiver status.
Table 7-3. TRX_STATUS.
Register Bits
TRX_STATUS
Value
0x00
0x01
0x02
0x06
0x08
0x09
Description
P_ON
BUSY_RX
BUSY_TX
RX_ON
TRX_OFF (CLK Mode)
PLL_ON (TX_ON)
0x0F
(1)
SLEEP
0x11
0x12
0x16
0x19
(2)
(2)
(2)
(2)
BUSY_RX_AACK
BUSY_TX_ARET
RX_AACK_ON
TX_ARET_ON
0x1F
(3)
STATE_TRANSITION_IN_PROGRESS
All other values are reserved
Notes: 1.
2.
3.
In SLEEP state register not accessible.
Extended Operating Mode only.
Do not try to initiate a further state change while the radio transceiver is in
STATE_TRANSITION_IN_PROGRESS state.
A read access to register bits TRX_STATUS reflects the current radio transceiver state.
A state change is initiated by writing a state transition command to register bits
TRX_CMD (register 0x02, TRX_STATE). Alternatively, some state transitions can be
initiated by the rising edge of pin 11 (SLP_TR) in the appropriate state.
These register bits are used for Basic and Extended Operating Mode, see Section 7.2 .
If the requested state transition is not completed yet, the TRX_STATUS returns
STATE_TRANSITION_IN_PROGRESS. Do not try to initiate a further state change
while the radio transceiver is in STATE_TRANSITION_IN_PROGRESS. State transition
timings are defined in Table 7-1 .
41
8321A – MCU Wireless – 10/11
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