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ZX Spectrum 16K/48K edge connector: Difference between revisions
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ZX Spectrum 16K/48K edge connector (view source)
Revision as of 16:24, 20 February 2012
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|0v||14||14||!NMI | |0v||14||14||!NMI | ||
|- | |- | ||
|VIDEO||15||15||!HALT | |[[#Video_Outputs|VIDEO]]||15||15||!HALT | ||
|- | |- | ||
|!Y||16||16||!MREQ | |[[#Video_Outputs|!Y]]||16||16||!MREQ | ||
|- | |- | ||
|V||17||17||!IORQ | |[[#Video_Outputs|V]]||17||17||!IORQ | ||
|- | |- | ||
|U||18||18||!RD | |[[#Video_Outputs|U]]||18||18||!RD | ||
|- | |- | ||
|!BUSRQ||19||19||!WR | |!BUSRQ||19||19||!WR | ||
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[[Category:Hardware]] | [[Category:Hardware]] | ||
[[Category:Spectrum]] | [[Category:Spectrum]] | ||
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==Notes on Connections== | |||
====Key Slot==== | ====Key Slot==== | ||
The key slot ensures correct alignment of a peripheral with the edge connector. The slot occupies the pin 5 positions | The key slot ensures correct alignment of a peripheral with the edge connector. The slot occupies the pin 5 positions | ||
====Video Outputs==== | |||
Pin 15 on the lower side of the edge connector provides the same composite video signal that is fed into the UHF modulator. | |||
Lower pin 16 on the carries an inverted luminosity signal to use with the 'U' and 'V' signals provided on lower pins 18 and 17 respectively | |||
