CMOSTEK CMT2380F17, Manual

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CMT2380F17
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Table 4-3. Transceiver Interrupt Mapping
Name INT1_SEL Description
Clear
Method
RX_ACTIVE 00000 Indicates that the interrupt is ready to enter RX or has entered RX,
which is
1 in the PLL calibration and RX status, otherwise 0 .
Auto
TX_ACTIVE 00001 Indicates that the interrupt is ready to enter TX or has entered TX, which
is
1 in the PLL calibration and RX status, otherwise 0 .
Auto
RSSI_VLD 00010 An interrupt Indicating whether the RSSI is valid Auto
PREAM_OK 00011 An interrupt Indicating whether Preamble is received successfully. by MCU
SYNC_OK 00100 An interrupt Indicating whether Sync Word is received successfully. by MCU
NODE_OK 00101 An interrupt Indicating whether Node ID is received successfully. by MCU
CRC_OK 00110 An interrupt Indicating whether receive and pass CRC check
successfully by MCU
PKT_OK 00111 An interrupt indicating receive a packet completely by MCU
SL_TMO 01000 An interrupt indicating SLEEP counter time out by MCU
RX_TMO 01001 An interrupt indicating RX counter time out by MCU
TX_DONE 01010 An interrupt indicating TX completion by MCU
RX_FIFO_NMTY 01011 An interrupt indicating RX counter is not empty Auto
RX_FIFO_TH 01100 An interrupt indicating unread contents in RX FIFO exceed FIFO TH Auto
RX_FIFO_FULL 01101 An interrupt indicating RX FIFO is full Auto
RX_FIFO_WBYTE 01110 An interrupt indicating a BYTE is written in RX FIFO, which is a pulse Auto
RX_FIFO_OVF 01111 An interrupt indicating RX FIFO overflow Auto
TX_FIFO_NMTY 10000 An interrupt indicating TX FIFO is not empty Auto
TX_FIFO_TH 10001 An interrupt indicating unread contents in TX FIFO exceed FIFO TH Auto
TX_FIFO_FULL 10010 An interrupt indicating TX FIFO is full Auto
STATE_IS_STBY 10011 An interrupt indicating current status is STBY Auto
STATE_IS_FS 10100 An interrupt indicating current status is RFS or TFS Auto
STATE_IS_RX 10101 An interrupt indicating current status is RX Auto
STATE_IS_TX 10110 An interrupt indicating current status TX Auto
LBD 10111 An interrupt indicating that low battery detection is active (VDD is lower
than the set TH) Auto
TRX_ACTIVE 11000 An interrupt indicating begin to enter RX or TX, already in RX or TX,
which is
1 in PLL calibration, RX status or TX state, otherwise 0 .
Auto
PKT_DONE 11001 Indicating that the current data packet has been received with 4 cases
as below:
1.
Receive the entire packet completely
2. Manchester decoding error, decoding circuit automatically restarts
3. NODE ID receives error, the decoding circuit automatically restarts
4. The signal conflict is found, the decoding circuit does not restart
automatically, waiting for the MCU to process
by MCU
The interrupt is valid for value 1 by default. However value 0 becomes valid for all interrupts by setting the INT_POLAR
register bit to 1. Still take INT1 as an example as shown in the below figure with the control and selection diagram of all interrupt
sources shown. INT1 and INT2 are the same in control and mapping.