7 register summary, Register summary, Table – Rainbow Electronics ATmega128RFA1 User Manual
Page 60: 13 on, And expects an, Table 9-13 on, Atmega128rfa1
60
8266A-MCU Wireless-12/09
ATmega128RFA1
Table 9-13. Interrupt Handling in Extended Operating Mode
Mode
Interrupt
Description
TRX24_RX_START
Indicates a PHR reception
TRX24_AMI
Issued at address match
RX_AACK
TRX24_RX_END
Signals completion of RX_AACK transaction if
successful
-
A received frame must pass the address filter;
-
The FCS is valid
TX_ARET
TRX24_TX_END
Signals completion of TX_ARET transaction
Both
TRX24_PLL_LOCK
Entering RX_AACK_ON or TX_ARET_ON state from
TRX_OFF state, the TRX24_PLL_LOCK interrupt
signals that the transaction can be started
RX_AACK
For RX_AACK it is recommended to enable the TRX24_RX_END interrupt. This
interrupt is issued only if a frame passes the frame filtering (see section
page 54) and has a valid FCS. This is different to Basic Operating Mode
"Basic Operating Mode" on page 35
). The use of the other interrupts is
optional.
On reception of a valid PHR a TRX24_RX_START interrupt is issued. The TRX24_AMI
interrupt indicates an address match (see filter rules in section
page 54). The completion of a frame reception with a valid FCS is indicated by the
TRX24_RX_END interrupt.
Thus it can happen that a TRX24_RX_START and/or a TRX24_AMI interrupt are
issued, but no TRX24_RX_END interrupt.
The end of an acknowledgment transmission is confirmed by a TRX24_TX_END
interrupt.
TX_ARET
In TX_ARET interrupt TRX24_TX_END is only issued after completing the entire
TX_ARET transaction.
Acknowledgement frames do not issue a TRX24_RX_START, TRX24_AMI or a
TRX24_RX_END interrupt.
All other interrupts as described in section
are also available in
Extended Operating Mode.
9.4.2.7 Register Summary
The following registers (
) are to be configured to control the Extended
Operating Mode:
Table 9-14. Register Summary
Register Name
Description
TRX_STATUS
Radio transceiver status, CCA result
TRX_STATE
Radio transceiver state control, TX_ARET status
TRX_CTRL_1
TX_AUTO_CRC_ON
PHY_CC_CCA
CCA_THRES
CCA threshold settings, see
XAH_CTRL_1
RX_AACK control