On 05/07/2008 11:59 AM, James Knott wrote: > mike scott wrote: >> On 6 May 2008 at 17:15, James Knott wrote: >> >> >>> Jerry Feldman wrote: >>> >> ... >> >>>> It was 1.5 stop bits back in 1976 when we were integrating a 1200bps >>>> modem into our POS system. I'm not talking about Baudot code. In any >>>> >> ... >> >>>> >>>> >>> It was never 1.5 stop bits for ASCII devices. It was either 2 stop bits >>> at 110 b/s or 1 at 300 & above. It wouldn't hurt anything, other than >>> >> >> I'm not sure that's correct. I'm pretty sure it was an option (1, >> 1.5, 2) on VAX serial ports. >> >> > The option may have been available, as it was on the 8250 UART used in
I've a few of those, and 8251 USART's out in the garage... I know the 8251 could be configure to allow 1.5 stop bits, can't recall if the 8250 also had this option. However, 1.5 was only used for characters with 5 information bits, so it wouldn't apply to standard/modern modems anyway. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
