Time Packet (RCP8 to Host)
| Char |
Function |
| 1 |
SYNC Byte
(B0 Hex) |
| 2 |
Year Low
7 bits |
| 3 |
Year High
7 bits |
| 4 |
Month |
| 5 |
Day |
| 6 |
Hour |
| 7 |
Minute |
| 8 |
Second |
| 9 |
1/100 of
second |
| 10 |
Status (unused,
zero) |
| 11 |
END OF MESSAGE (FF Hex) |
These packets are sent in both directions to
convey serial TTY communication. Up to six 7–bit characters can be sent in each packet with
two characters of overhead for SYNC and END. This
allows up to 75 % of the available serial bandwidth to be used for chatting. If a chat–mode
packet contains fewer than six characters, then a NULL (0 byte) is
inserted after the last one.
Chat–Mode Packet
| Char |
Function |
| 1 |
SYNC Byte
(F1 Hex) |
| 2 to 7 |
7–Bit ASCII
characters (possibly NULL terminated) |
| 8 |
END OF MESSAGE (FF Hex) |
