S ROM: Difference between revisions

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[[File:s_rom.jpg|thumb|right|128KiB S1 ROM]]
[[File:s_rom.jpg|thumb|right|128KiB S1 ROM]]
Graphics ROM containing tiles for the [[Fix layer]]. Bankswitch for ROMs larger than 128KiB handled by {{Chipname|NEO-CMC}}.
Graphics ROM containing tiles for the [[Fix layer]]. Bankswitch for ROMs larger than 128KiB is handled by {{Chipname|NEO-CMC}}.


Also found embedded in [[MVS systems]] under the [[SFIX]] name.
Also found embedded in [[MVS systems]] under the [[SFIX ROM|SFIX]] name.


==Data format==
==Data format==

Revision as of 06:24, 16 January 2017

File:S rom.jpg
128KiB S1 ROM

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

Also found embedded in MVS systems 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 ?