🚀 go-pugleaf

In article <0WV1D7H@obh.in-berlin.de> nummer_5@obh.in-berlin.de (Christian Wierzbicki) writes:
>Hi, Folks !
>-----------
>I've read in Motorolas Hardware Manual on the 56001 that there has to
>be fast static ram connected to the processor.
>
>Therefore my questions are:
>
>1.) How fast must this s-ram be at minimum (for usw with a 2MHz 56001)

I think you wanted to say 20 MHz instead of 2 MHz.
The access time of the s-ram has to be, without address decoding of any
kind, about 55 ns. With address decoding accordingly less, you end up
using 35 ns s-rams in most cases.

>2.) Can someone send me a picture or something (best gif or amiga iff)
>    where such a connection is shown (cause I don't understand the
>    drawn one in the manual).

Connection of srams depends on a lot of factors. The easiest configuration
(without decoding) just connects address lines, data lines, rd and wr
signals to the corresponding pins of the srams.


Norbert Hanke
ETH Zurich, Switzerland