Re: C011 Link Adaptors

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1 total messages Started by MJP Wed, 04 Oct 1989 13:40

#301

Author: MJP
Date: Wed, 04 Oct 1989 13:40

39 lines
2448 bytes

In a recent article, Kevin Bertram writes:


>	I have a problem with the C012 Link adapter which the product
>data sheets don't have an answer for. And I thought that maybe someone
>here, in this news group, could answer it for me.
>	On the C012 Link adapter chip pin 14 has the function of
>"SeperateIQ". What does this pin do and what should its logic state be
>for normal functioning of the chip? The block diagram of the chip towards
>the front of the data sheets don't include this pin name and the pin name
>description list has forgotten it too.
>	One more thing. The "CapMinus" line connects to the "Minus" side
>of a capacitor but where does the positive side go? Is it safe to assume
>Vcc?
>
>	Thanks for any help you might have.
>
>		-Kevin  (kevin@latcs1.oz)
>

The data sheet I use (printed in the Transputer Databook, First Edition 
1989) indicates that pin 14 has the function HoldToGND, NOT SeparateIQ.  
However, SeparateIQ on the C011 (pin16) selects Mode 2 when connected to
GND, Mode 1 10 Mbits/s when connected to Vcc, and Mode 1 20 Mbits/s when
connected to ClockIn. 

The capacitor positive end does go to Vcc.

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