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Rev. 0.1
3.5.31. PREAMBLE_CONFIG
Summary: Preamble configuration bits
Purpose:
Misc preamble configuration bits.
Property: 0x1004
Default: 0x21
Fields:
PREAM_FIRST_1_OR_0 - default:1
0x0 = First bit is 0, calculated from the calculator.
0x1 = First bit is 1, calculated from the calculator.
LENGTH_CONFIG - default:0
0x0 = Preamble tx_length register is in nibbles.
0x1 = Preamble tx_length register is in bytes.
MAN_CONST - default:0
0x0 = When Manchester is enabled, if preamble pattern is 0101, the post-Manchester transmitted bits will be
10011001…. If the preamble pattern is 1010, the post-Manchester transmitted bits will be 01100110...
0x1 = When Manchester is enabled, if preamble pattern is 0101, the pre-Manchester pattern will be 1111, the
post-Manchester transmitted bits will be 01010101... If the preamble pattern is 1010, the pre-Manchester pattern will
be 0000, the post-Manchester transmitted bits will be 10101010....
MAN_ENABLE - default:0
0x0 = Preamble is not manchester encoded.
0x1 = Preamble is manchester encoded.
STANDARD_PREAM[1:0] - default:0x1
0x0 = Use non-standard preamble
0x1 = Use standard preamble of 1010.
0x2 = Use standard preamble of 0101.
Register View
PREAMBLE_CONFIG
7
6
5
4
3
2
1
0
0x0
PREAM_FIRST_1_OR_0 LENGTH_CONFIG MAN_CONST MAN_ENABLE STANDARD_PREAM[1:0]
0x0
1
0
0
0
0x1
Summary of Contents for Si446 Series
Page 111: ...AN625 Rev 0 1 111 NOTES ...
