Internal Interfaces
Table 12, Uplink Frame Format
Byte Function
0 Frame
synchronization bit pattern: J-sync followed by K-sync.
1 Various
telemetry and status messages.
2
LSB of frame up-counter. Reset to zero during ping.
3
MSB of frame up-counter. Reset to zero during ping.
4
I value of receiver 0.
5
Q value of receiver 0.
6
I value of receiver 1.
7
Q value of receiver 1.
|
|
510
I value of receiver 253.
511
Q value of receiver 253.
Table 13, Uplink Encoding Scheme From 4-Bit Nibbles to 5-Bit Codes
Nibble
4-to-5 (first – last)
0000 11110
0001 01001
0010 10100
0011 10101
0100 01010
0101 01011
0110 01110
0111 01111
1000 10010
1001 10011
1010 10110
1011 10111
1100 11010
1101 11011
1110 11100
1111 11101
J-Sync 11000
K-Sync 10001
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SeaBat 8101 Operator's Manual
7-2
Version 3.02