Difference between revisions of "VMU"
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(Created page with " The <b>VMU</b>, or <b>Visual Memory Unit</b>, is an accessory for the Sega Dreamcast which functions primarily as a storage device for save files. During gameplay, a VMU ...") |
m (→Power Supply Mod: Rewrote section to use the main template.) |
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− | + | [[File:Sega-Dreamcast-VMU.jpg|100px|thumb]] | |
The <b>VMU</b>, or <b>Visual Memory Unit</b>, is an accessory for the [[Sega Dreamcast]] which functions primarily as a storage device for save files. During gameplay, a VMU attached to a controller may display additional helpful information for the game or just the game's logo. The VMU can be used independently of the Dreamcast to manage save data or play mini-games downloaded from full Dreamcast games. | The <b>VMU</b>, or <b>Visual Memory Unit</b>, is an accessory for the [[Sega Dreamcast]] which functions primarily as a storage device for save files. During gameplay, a VMU attached to a controller may display additional helpful information for the game or just the game's logo. The VMU can be used independently of the Dreamcast to manage save data or play mini-games downloaded from full Dreamcast games. | ||
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|Case dimensions || (width×height×depth): 47 mm × 80 mm × 16 mm (1.85 in × 3.15 in × 0.63 in) | |Case dimensions || (width×height×depth): 47 mm × 80 mm × 16 mm (1.85 in × 3.15 in × 0.63 in) | ||
|- | |- | ||
− | |Power source || 2 × CR2032 batteries (6V) with auto-off function | + | |Power source* || 2 × CR2032 batteries (6V) with auto-off function |
|- | |- | ||
|Sound || 1-channel PWM sound source | |Sound || 1-channel PWM sound source | ||
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|Weight || 45 g (1.6 oz) | |Weight || 45 g (1.6 oz) | ||
|} | |} | ||
+ | *The batteries are NOT required to maintain game saves; those are kept in flash memory. They are required only to use the VMU independently of the Dreamcast to play minigames, manage save files, and keep time. | ||
==Internal Hardware== | ==Internal Hardware== | ||
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Dc-vmu-board-back.jpg | Dc-vmu-board-back.jpg | ||
</gallery> | </gallery> | ||
+ | |||
+ | ==Mods== | ||
+ | ===Power Supply Mod=== | ||
+ | {{main|VMU Power Supply Mod}} | ||
+ | The VMU is normally powered by two CR2032 batteries which can drained after only a couple hours of use. Because the VMU requires a voltage of 6VDC, one can be modified to be powered by 4 AAA or AA batteries or a suitable AC adapter. See the VMU power supply mod page for a guide on how to do this simple mod yourself. |
Latest revision as of 21:47, 12 April 2022
The VMU, or Visual Memory Unit, is an accessory for the Sega Dreamcast which functions primarily as a storage device for save files. During gameplay, a VMU attached to a controller may display additional helpful information for the game or just the game's logo. The VMU can be used independently of the Dreamcast to manage save data or play mini-games downloaded from full Dreamcast games.
Technical Specifications[edit]
CPU | 8-bit (Sanyo LC8670 "Potato") |
Memory | 128KB flash memory. 28KB is reserved for system use leaving 100KB for data storage, which is divided into 200 'blocks' - 1 block equaling 512 bytes. |
Display | 48 dot width × 32 dot height, LCD |
Display size | (width×height): 37 mm × 26 mm (1.46 in × 1.02 in) |
Case dimensions | (width×height×depth): 47 mm × 80 mm × 16 mm (1.85 in × 3.15 in × 0.63 in) |
Power source* | 2 × CR2032 batteries (6V) with auto-off function |
Sound | 1-channel PWM sound source |
Weight | 45 g (1.6 oz) |
- The batteries are NOT required to maintain game saves; those are kept in flash memory. They are required only to use the VMU independently of the Dreamcast to play minigames, manage save files, and keep time.
Internal Hardware[edit]
Mods[edit]
Power Supply Mod[edit]
- Main article: VMU Power Supply Mod
The VMU is normally powered by two CR2032 batteries which can drained after only a couple hours of use. Because the VMU requires a voltage of 6VDC, one can be modified to be powered by 4 AAA or AA batteries or a suitable AC adapter. See the VMU power supply mod page for a guide on how to do this simple mod yourself.