TNT4882 as controller in charge?

[Tony Tero]

Hello All,

Can anyone tell me if the TNT4882 chip can be configured to act as the
controller in charge on the gpib bus?

The software manual for the chip indicates that is has capability code
C0, which apparently means no controller capability. This seems
straightforward, but I understand that the TNT chip is basically a
supercharged NAT4882, which seems to have CIC capability.

Any information would be appreciated.

Thanks,

-- Tony Tero

[DiegoF]

Hi,

The TNT4882 does not have controller capabilities. This chip is only for talker/listener applications. The TNT uses much of the NAT4882 circuitry, but also includes the bus transceiver and Turbo circuitry.

You can get all the information on the available chips at :
http://www.ni.com/support/gpib/reg_prog.htm

What type of device are you developing?. Do you need controller capability?

DiegoF
National Instruments.

[Tony Tero]

Hi,

Thanks for the reply.

We don't usually need CIC capability in our products, but we have a
requirement for a custom one-of product where several of our boxes
need to talk to each other directly without a host PC. Since our
existing product has a GPIB interface using the TNT4882, we were
considering the possibility of having one becoming CIC and controlling
the others.

Our backup plan is to use RS485.

Thanks Again,

-- Tony Tero


On Fri, 4 Oct 2002 13:01:24 -0500 (CDT), DiegoF wrote:

>Hi,
>
>The TNT4882 does not have controller capabilities. This chip is only
>for talker/listener applications. The TNT uses much of the NAT4882
>circuitry, but also includes the bus transceiver and Turbo circuitry.
>
>You can get all the information o
n the available chips at :
>http://www.ni.com/support/gpib/reg_prog.htm
>
>What type of device are you developing?. Do you need controller
>capability?
>
>DiegoF
>National Instruments.