On 11/13/19 10:41 AM, Nigel Johnson via cctalk wrote: > > On 13/11/2019 13:36, Chuck Guzis via cctalk wrote: >> There are other "oddball" combinations, such as 8E1 and 8O1, which sends >> a 9-bit data frame. You can see datasheets on some UARTs as well as MCU >> UARTs that support the 9 bit packet. > According to the diagram of the Smartmodem there is no UART, the 1488s > and 1489s go directly to the Z80. >> Also, don't/doesn't TDD (5 level code) use 5E2 or some such. Same for >> Telex/TWX. > > Not sure 5 level code (ITU #2) ever had parity, but to confuse the issue > even further, there was a 1.5 stop bit option too, for mechanical machines!
Strange that--not even a DART? Well, I was always a Racal Vadic guy back in the day of 300 bps. Also, 134.5 for selectric machines. --Chuck
