> Method 2: ~12 pins taken on pic...
>
> 8 pins shared data, and all address
> 2 extra chips providing latches to the address pins on the eprom
> extra pins for enables and output enable.
>
> Basic flow:
>
> Place first part of address on address/data pins
> <wait a cycle>
> toggle the 1st latch to transfer the data over to the eprom
> place second part of address on address/data pins
> <wait a cycle>
> toggle the 2nd latch to transfer the data over to the eprom
> <wait a cycle>
> set pins on pic for input
> Bring eprom enable pin low
> bring eprom output enable pin low
> <wait a cycle>
> Read data
> set output enable high
> set enable pin high

You say 2 chips providing latches. What do you mean 2 PICs more?
Because i am a beginner can you be more spesific on that?
Thanks.

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics