Fields:
| Name | Type | When |
|---|---|---|
| info | ubyte | |
| length | ushort | |
| message index | triad | (info & 0x7F) is greater than or equal to 64 |
| order index | triad | (info & 0x7F) is greater than or equal to 96 |
| order channel | ubyte | (info & 0x7F) is greater than or equal to 96 |
| split | split | (info & 0x10) is not equal to 0 |
| payload | bytes |