October 2017 RiverPro and RioPro ADCP Guide
Page 138
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Header Data Format
BIT POSITIONS
BYTE 7 6 5 4 3 2 1 0
1 HEADER ID (7Fh)
2 DATA SOURCE ID (7Fh)
3
NUMBER OF BYTES IN ENSEMBLE
LSB
4 MSB
5 SPARE
6 NUMBER OF DATA TYPES
7
OFFSET FOR DATA TYPE #1
LSB
8 MSB
9
OFFSET FOR DATA TYPE #2
LSB
10 MSB
11
OFFSET FOR DATA TYPE #3
LSB
12 MSB
↓
(SEQUENCE CONTINUES FOR UP TO N DATA TYPES)
↓
2N+5
OFFSET FOR DATA TYPE #N
LSB
2N+6 MSB
See Table 18 for a description of the fields.
Figure 29. Header Data Format