| ??? 02/17/11 08:25 Read: times |
#181142 - wayback machine Responding to: ???'s previous message |
Andy Neil said:
Jan Waclawek said:
You can request historical documents Thanks - I'll give that a try. I was thinking of the recent thread here about the 9-bit protocol: My old post describing it gives links to the Intel site which, of course, no longer exist. :-( the "old post" Andymentions above said: Rather than relying on Intel or whomever to be willing to archive/post old documents, I am trying to gather everything I am interested in until it's still available. As a last resort, there are these datasheet-archiving websites, and, better, the Internet Archive - which appears to have a fairly complete copy of the relevant Intel pages.
The Standard 8051 UART supports the 9-bit "multiprocessor" mode, but the Enhanced UART does the automatic address recognition.
Automatic address recognition is controlled by two Special Function Registers: SADDR and SADEN. So, if your variant doesn't have these, I guess it doesn't do automatic address recognition! See http://www.intel.com/design/mc...266801.pdf and http://www.intel.com/design/mc...049001.pdf Jan |
