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ZXI standard: Difference between revisions

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(Created page with "frame|ZXI logo The ZXI (ZX Interface) standard is for devices that are attached to the Spectrum edge connector. ZXI compliant devices are inter-operable with eac...")
 
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#FF3B - ULAplus data
#FF3B - ULAplus data
#BF3B - ULAplus register
#BF3B - ULAplus register
#xB3B - Development/Testing. These ports should only be used during device development.
#053B - Reserved
#043B - Reserved
#033B - Spectranet page A memory select  
#033B - Spectranet page A memory select  
#023B - Spectranet page B memory select
#023B - Spectranet page B memory select
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This leaves 250 ports available for new devices. Devices with the same function, for example IDE interfaces, may be allocated the same ports on the basis that only one of these devices should be connected at a time.
Devices with the same function, for example IDE interfaces, may be allocated the same ports on the basis that only one of these devices should be connected at a time.


== Port Decoding ==
== Port Decoding ==