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| 型号： | I5104XY |
| 厂商： | WINBOND ELECTRONICS CORP |
| 元件分类： | 音频合成 |
| 英文描述： | 262.2 SEC, SPEECH SYNTHESIZER WITH RCDG, UUC25 |
| 封装： | DIE-25 |
| 文件页数： | 62/87页 |
| 文件大小： | 616K |
| 代理商： | I5104XY |
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66
8393B-MCU Wireless-02/13
ATmega256/128/64RFR2
Table 9-16. Interrupt Handling in Extended Operating Mode
Mode
Interrupt
Description
RX_AACK
TRX24_RX_START
Indicates a PHR reception
TRX24_AMI
Issued at address match
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 "Frame
Filtering" on page 58) and has a valid FCS. This is different to Basic Operating Mode
(see section "Basic Operating Mode" on page 38). 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 "Frame Filtering" on
page 58). 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 Table 9-2 on page 37 are also available in
Extended Operating Mode.
9.4.2.8 Register Summary
The following registers (Table 9-17 below) are to be configured to control the Extended
Operating Mode:
Table 9-17. 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 mode control, Table 9-24 on page 76
CCA_THRES
CCA threshold settings, see "Overview" on page 76
XAH_CTRL_1
RX_AACK control
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