Rombo Rombox: Difference between revisions
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A ROM expansion board | A ROM expansion board from [[Rombo Productions]]. | ||
== Technical == | |||
The rom board has 8 rom slots which can be individually enabled using the dipswitches. | |||
A link allows the roms to use the ids of 0-7 or 8-15. | |||
0-7 is compatible with the firmware in the 464 which is limited to 8 roms. | |||
0-7 or 8-15 is compatible with the firmware in the 6128 and Plus. | |||
NOTE: Some 6128's may not support ROM 7 being overridden so if you use the range 0-7 then you should disable slot 7. | |||
Testing was done by user nrgroom on his Rombo Rom board. | |||
The I/O port used to select the rom (dfxx) is decoded partially and only checks A13=0 like other rom boards. | |||
ROM ids are 8-bit and fully decoded. If range 8-15 is selected with the link then you see a rom in slot '0' in 8 only. It is not show in any other slots. I.e. it's not repeated. | |||
== Pictures == | == Pictures == | ||
<gallery caption="Rombo Rombox"> | <gallery caption="Rombo Rombox"> | ||
Image:rombo rombox 3.jpg| | Image:rombo rombox 3.jpg| | ||
Image:rombo rombox 2.jpg|A through bus expansion to connect other devices | Image:rombo rombox 2.jpg|A through bus expansion to connect other devices | ||
Image:rombo rombox 1.jpg|Inside | Image:rombo rombox 1.jpg|Inside | ||
Image:rombo rombox 4.jpg|Roms individually | Image:rombo rombox 4.jpg|Roms individually configurable | ||
Image:ROMBO_RomBoard_PCB_Top.jpg|PCB Top | |||
Image:ROMBO_RomBoard_PCB_Bottom.jpg|PCB Bottom | |||
</gallery> | </gallery> | ||
[[ | == Manual == | ||
[[Category: | |||
[[Media:ROMBO ROM-Board Manual.pdf|Rombo 8 socket ROM-Board Manual]] (pdf) | |||
[[Category:Expansion ROM]] [[Category:Peripherals]] [[Category:manual]] | |||
Latest revision as of 21:05, 3 March 2017
A ROM expansion board from Rombo Productions.
Technical
The rom board has 8 rom slots which can be individually enabled using the dipswitches. A link allows the roms to use the ids of 0-7 or 8-15.
0-7 is compatible with the firmware in the 464 which is limited to 8 roms. 0-7 or 8-15 is compatible with the firmware in the 6128 and Plus.
NOTE: Some 6128's may not support ROM 7 being overridden so if you use the range 0-7 then you should disable slot 7.
Testing was done by user nrgroom on his Rombo Rom board.
The I/O port used to select the rom (dfxx) is decoded partially and only checks A13=0 like other rom boards.
ROM ids are 8-bit and fully decoded. If range 8-15 is selected with the link then you see a rom in slot '0' in 8 only. It is not show in any other slots. I.e. it's not repeated.
Pictures
- Rombo Rombox
-
A through bus expansion to connect other devices
-
Inside
-
Roms individually configurable
-
PCB Top
-
PCB Bottom
