CCSDS Telecommand Header
| offset |
15 |
14 |
13 |
12 |
11 |
10 |
9 |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
0 |
| 0x00 |
Version |
T |
SH |
APID |
| 0x02 |
SF |
Sequence Count |
| 0x04 |
Packet Length |
| 0x06 |
MBZ |
Function Code |
- Version CCSDS packet version
Always 0
- T
CCSDS packet type
Always 1 (for telecommand)
- SH
CCSDS secondary header Always 1
(secondary header exists)
- APID Application ID
Ranges defined in LATA/SA ICD
- SF
Sequence Flag
Always 3 (11b)
-
Sequence Count
Sequence count, incremented by APID <?????>
-
Packet Length
Data payload length + 1 (bytes) <?????>
- MBZ Must Be Zero
Specified in LAT/SA ICD
-
Function Code
Function code (unrestricted)