HP91xx controllers (was HP-IB disc drive emulation program available)

Chuck Guzis cclist at sydex.com
Fri Dec 18 19:28:46 CST 2009


On 18 Dec 2009 at 6:34, jd wrote:

> Perhaps the 8291 used less code on the microcontrollers? Or perhaps it
> could do seomthing on it's own, unlike the 9914, such as assert NRDF
> when it's databuffer was full? Come to think of it, wasn't the 8291
> almost "smart", like a hard coded microcontroller?

The 8292 controller *was*  an 8041 with Intel-defined firmware.  The 
8291 looks more like a state machine to me.

--Chuck




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