[comp.sys.atari.st.tech] Cartridge port timing questions.

swanee@megadata.mega.oz.au (Geoff Swan) (04/24/91)

Does anyone know what the timing constraints of the cartridge port
(ST, MEGA, STE and TT) are?  Without a DTACK or DSACK signal being
returned from the port, what are the data setup times required to
meet the internal logic timing for data transfer.

Bearing this in mind, the TT runs at a much higher clock speed, so
does the cartridge port now also have changed timing requirements
over the ST's? If so, does this mean that most of the older devices
using this port may no longer work?

Any information regarding this would be gratly appreciated.
  
                          Thanks in advance,
                                           Geoff Swan.
                                     (swanee@megadata.oz)