Path: utzoo!attcan!uunet!dino!ceres!zaphod.mps.ohio-state.edu!mips!prls!gordon
From: gordon@prls.UUCP (Gordon Vickers)
Newsgroups: sci.electronics
Subject: Re: Need pointer to CMOS Uart
Message-ID: <34002@prls.UUCP>
Date: 15 Mar 90 17:02:38 GMT
References: <53558@microsoft.UUCP>
Reply-To: gordon@prls.UUCP (Gordon Vickers)
Distribution: na
Organization: Philips Research Labs, Sunnyvale, California
Lines: 45

In article <53558@microsoft.UUCP> gordonl@microsoft.UUCP (Gordon LETWIN) writes:
>I need a quick and easy PC interface to about 8 RS232 lines.  Performance
>requirements are low so I was thinking of just wrapping a kuldge card
>with several UARTs.  The last one I worked with was the 8250, 10 years ago
>or so.  I find it very convenient, but I don't want to give up the real
>estate and power drain to put 8 of those on a card.
>
>If someone knows of a easy to use UART/USART, ideally CMOS and ideally
>multi-channel per package, I'd appreciate it if you could email me the
>part #; I'm sure that in the last 8 years there've been some good chips
>
>	thanks
>	gordon letwin

     Signetics, a division of Philips Components makes the SCC2698 :
       o CMOS
       o Octal UART
       o quadruple buffered receiver data register
       o Programmable data format :
           - 5 to 8 data bits plus parity
           - Odd, even, no parity, or force parity
           - 1, 1.5 or 2 stop bits
       o Baud rate for receiver and transmitter selectable from :
           - 18 fixed rates: 50 to 38.4K
           - four user-defined rates derived from the programmable
              counter/timer associated with each of the four blocks
           - External 1X or 16X clock
       o Parity, framing, and overrun error dectection
       o False start bit detection
       o Line break detection and generation
       o Programmable channel mode :
            - Normal (full duplex), automatic echo, local loopback,
                remote loopback
       o Four multi-function programmable 16-bit counter/timers
       o Four interrupt outputs with eight maskable interrupting conditions
           for each output
       o On-chip crystal oscillator
       o TTL compatible
       o Single +5V power supplly with low power mode


Gordon Vickers 408/991-5370, at Signetics  (Sunnyvale, California, USA )
{mips|pyramid|philabs}!prls!facv01!gordon       ** All disclaimers apply **
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