Rainbow-electronics ATmega128RFA1 Bedienungsanleitung Seite 103

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103
8266A-MCU Wireless-12/09
ATmega128RFA1
command to the TRX_CMD bits of register TRX_STATE. The register is not accessible
in SLEEP state.
Bit 7 – CCA_DONE - CCA Algorithm Status
This bit indicates if a CCA request is completed. This is also indicated by a
TRX24_CCA_ED_DONE interrupt. Note that register bit CCA_DONE is cleared in
response to a CCA_REQUEST.
Table 9-30 CCA_DONE Register Bits
Register Bits Value Description
0 CCA calculation not finished CCA_DONE
1 CCA calculation finished
Bit 6 – CCA_STATUS - CCA Status Result
The result of the CCA measurement is available in register bit CCA_STATUS after a
CCA request is completed. Note that register bit CCA_STATUS is cleared in response
to a CCA_REQUEST.
Table 9-31 CCA_STATUS Register Bits
Register Bits Value Description
0 Channel indicated as busy. CCA_STATUS
1 Channel indicated as idle.
Bit 5 – TST_STATUS - Test mode status
This bit is reserved for internal use. It indicates the status of the test mode.
Table 9-32 TST_STATUS Register Bits
Register Bits Value Description
0 Test mode is disabled. TST_STATUS
1 Test mode is active.
Bit 4:0 – TRX_STATUS4:0 - Transceiver Main Status
The register bits TRX_STATUS signal the current radio transceiver status. Do not try to
initiate a further state change while the radio transceiver is in
STATE_TRANSITION_IN_PROGRESS state. Values not listed in the following table
are reserved.
Table 9-33 TRX_STATUS Register Bits
Register Bits Value Description
0x01 BUSY_RX
0x02 BUSY_TX
0x06 RX_ON
0x08 TRX_OFF
0x09 PLL_ON
0x0F SLEEP
0x11 BUSY_RX_AACK
0x12 BUSY_TX_ARET
0x16 RX_AACK_ON
0x19 TX_ARET_ON
TRX_STATUS4:0
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