Question to the iron workers

ZXNet echo conference «real.speccy»

From Yuri Voynalovich To All 13 September 2000


Hi *All*!

There is a subject here about statics 62256:

From Ivan Mak To All 13 September 2000


Greetings, Yuri!

<10:19> Yuri Voynalovich write to All:

YV> Will R/W keep up if, for example, on the positive edge of the signal
YV> 7 Mhz the address for reading the byte is set, and on
YV> negative - for the record?
YV> i.e. it turns out to be 14Mhz - a byte should be read/written in less
YV> than in a half-cycle of 7Mhz (71.4ns?)
YV> If so, will it work at twice the frequency?

If it’s cache, then it will. In Sprinter they operate at a frequency of 42 MHz.
And on the microcircuits themselves it is written how many nanoseconds they are 62256-15, for example,
this is 15 nanoseconds, i.e. 66MHz...

The Protoss have escaped. The Zerlings took off. It's time for me to call it a day. Ivan.

- Divorce the scheme, big and small... [Sprinter-II] [Forth-CPU] [ZX]

... ivan...@mail.ru * http://st-rektal.chat.ru * http://www.atlant.ru/peters