[sdiy] serial EEPROM?

[simon.oo.o at xs4all.nl]

Hi Thom,

Thom Ash zei:
> hello all,
>
> i've got a Z80-based scale quantizer project in the planning stages... but
> i'm having a spot of bother choosing a suitable ROM chip. all the other
> core
> devices (Z80, SRAM, ADC, DAC) have a parallel interface which makes things
> nice and easy. from looking at online catalogues it seems that all the
> EEPROM parts of the right size are serial. hence two queries:
> 1. how can i find out how to make the Z80 and EEPROM talk to each other?
> 2. presumably i don't want to run the main program loop from the EEPROM as
> this would slow everything down quite badly - so some kind of boot loader
> to
> get the time-critical code into my SRAM? anything important or
> non-intuitive
> i should know about this?

EEPROM is generally used to store configuration data etc., not program code.

For program memory you should have a look at EPROM or flash ROM, which
have the same type of interface as SRAM.

Vriendelijke groet,

Simon Brouwer
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