S ROM: Difference between revisions

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Graphics ROM containing tiles for the [[Fix layer]]. Can be up to 1MiB when banked by the [[NEO-ZMC]] chip.
[[File:s_rom.jpg|thumb|right|128KiB S1 ROM]]
Graphics ROM containing tiles for the [[fix layer]]. Bankswitching for ROMs larger than 128KiB is handled by {{Chipname|NEO-CMC}}.


Found embeded in cartridge-based systems with the [[SFIX]] name.
Also found embedded in the [[MVS]] under the [[SFIX ROM|SFIX]] name.
 
==Data format==
See [[fix graphics format]].
 
==Speed==
Minimum speed grade: 200ns (strictly < 250ns). Or is it < 200ns ? 5 or 6 mclk ?


[[Category:Chips]]
[[Category:Chips]]
[[Category:Emulation]]
[[Category:Cartridge systems]]
[[Category:Video system]]

Latest revision as of 02:35, 21 October 2017

File:S rom.jpg
128KiB S1 ROM

Graphics ROM containing tiles for the fix layer. Bankswitching for ROMs larger than 128KiB is handled by NEO-CMC.

Also found embedded in the MVS under the SFIX name.

Data format

See fix graphics format.

Speed

Minimum speed grade: 200ns (strictly < 250ns). Or is it < 200ns ? 5 or 6 mclk ?