Data Sheet

Page 73
RFM69HCW
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ADVANCED COMMUNICATIONS & SENSING DATASHEET
7 TxStartCondition rw 1
*
Defines the condition to start packet transmission :
0 → FifoLevel (i.e. the number of bytes in the FIFO
exceeds FifoThreshold)
1 → FifoNotEmpty (i.e. at least one byte in the FIFO)
RegFifoThresh
(0x3C)
6-0 FifoThreshold rw 0001111 Used to trigger FifoLevel interrupt.
7-4 InterPacketRxDelay rw 0000 After PayloadReady occurred, defines the delay between
FIFO empty and the start of a new RSSI phase for next
packet. Must match the transmitter’s PA ramp-down time.
- Tdelay = 0 if InterpacketRxDelay >= 12
- Tdelay = (2
InterpacketRxDelay
) / BitRate otherwise
3 - rw 0 unused
2 RestartRx w 0 Forces the Receiver in WAIT mode, in Continuous Rx
mode.
Always reads 0.
1 AutoRxRestartOn rw 1 Enables automatic Rx restart (RSSI phase) after
PayloadReady occurred and packet has been completely
read from FIFO:
0 → Off. RestartRx can be used.
1 → On. Rx automatically restarted after
InterPacketRxDelay.
RegPacketConfig2
(0x3D)
0 AesOn rw 0 Enable the AES encryption/decryption:
0 → Off
1 → On (payload limited to 66 bytes maximum)
RegAesKey1
(0x3E)
7-0 AesKey(127:120) w 0x00
1
st
byte of cipher key (MSB byte)
RegAesKey2
(0x3F)
7-0 AesKey(119:112) w 0x00
2
nd
byte of cipher key
RegAesKey3
(0x40)
7-0 AesKey(111:104) w 0x00
3
rd
byte of cipher key
RegAesKey4
(0x41)
7-0 AesKey(103:96) w 0x00
4
th
byte of cipher key
RegAesKey5
(0x42)
7-0 AesKey(95:88) w 0x00
5
th
byte of cipher key
RegAesKey6
(0x43)
7-0 AesKey(87:80) w 0x00
6
th
byte of cipher key
RegAesKey7
(0x44)
7-0 AesKey(79:72) w 0x00
7
th
byte of cipher key
RegAesKey8
(0x45)
7-0 AesKey(71:64) w 0x00
8
th
byte of cipher key
RegAesKey9
(0x46)
7-0 AesKey(63:56) w 0x00
9
th
byte of cipher key
RegAesKey10
(0x47)
7-0 AesKey(55:48) w 0x00
10
th
byte of cipher key
RegAesKey11
(0x48)
7-0 AesKey(47:40) w 0x00
11
th
byte of cipher key
RegAesKey12
(0x49)
7-0 AesKey(39:32) w 0x00
12
th
byte of cipher key
RegAesKey13
(0x4A)
7-0 AesKey(31:24) w 0x00
13
th
byte of cipher key