I'm about to be using one in a couple of weeks, looking at the data sheet make
sure  the chip hasn't muted the output.
Regards
Stuart

David Duffy wrote:

> Hi everyone,
> Has anyone interfaced a PIC to the National Semi LMC1983 audio control IC ?
> It uses the 'IM' bus (Inter-Metall) which is a 3 wire serial control from
> ITT (Germany).
> I look (from datasheet) to be driving it correctly but the IC doesn't
> respond at all.
> There's probably a simple reason for it but many hours so far haven't found
> it.
> Does anyone have any experience with this device or any IM bus type slaves ?
> I am using a 16F84 to drive the IM bus with.  Any ideas greatfully received !
> Regards...
>
> ___________________________________
> David Duffy               Audio Visual Devices
> Ph: +61 7 38210362   Fax +61 7 38210281
> AVD@uq.net.au  Unit 8, 9-11 Trade Street
> Cleveland, Qld, 4163, Australia.
> ___________________________________