[time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A, Z3811A, Z3812A GPSDO system

Hal Murray hmurray at megapathdsl.net
Tue Nov 4 05:12:33 EST 2014

stewart.cobb at gmail.com said:
> Perhaps there is a transmit-only UART coded into the FPGA, or perhaps one of
> the UARTs is timeshared with the Lucent message, or perhaps there is another
> UART chip hidden somewhere on the board. 

There is a UART in the MC68301.  Page 51 of the data sheet.  (They call it 
SCI.  It probably doesn't have all the features of a modern UART.)

I think the MC68692 is a dual UART, but I didn't find a data sheet.

These are my opinions.  I hate spam.

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