VMU hardware overview: Difference between revisions
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* '''CPU''': 8-bit Sanyo LC86K87 | * '''CPU''': 8-bit Sanyo LC86K87 | ||
* '''Clock''': 32.8KHz quartz oscillator | * '''Clock''': 32.8KHz quartz oscillator, 879.2kHz RC oscillator, 6MHz CF oscillator | ||
* '''RAM''': 256 bytes for applications, 256 reserved for system BIOS, 512 bytes of additional WRAM | * '''RAM''': 256 bytes for applications, 256 reserved for system BIOS, 512 bytes of additional WRAM | ||
* '''ROM''': 4KB OS/firmware functionality, 16KB system BIOS program area | * '''ROM''': 4KB OS/firmware functionality, 16KB system BIOS program area | ||
Revision as of 01:54, 23 May 2023
- CPU: 8-bit Sanyo LC86K87
- Clock: 32.8KHz quartz oscillator, 879.2kHz RC oscillator, 6MHz CF oscillator
- RAM: 256 bytes for applications, 256 reserved for system BIOS, 512 bytes of additional WRAM
- ROM: 4KB OS/firmware functionality, 16KB system BIOS program area
- Flash: 128 KB (200 blocks) with 8-bit FAT filesystem
- Power source: Two CR2032 batteries with auto-off function and low-battery detection circuit
- Display: 48 dot Width x 32 dot Height resolution, Monochrome
- Display size: 37 mm (1.46 inches) Width x 26 mm (1.02 inches) Height
- Sound: PWM sound chip, 1-channel PWM sound source
- Input: 4-button D-pad, 2 general-purpose buttons (A, B), MODE, SLEEP
- Timer: Base Timer (14-bit binary up counter), 2xTimer Circuits (16-bit timer/counter with pulse generator)
- Serial Interface: Dedicated Maple interface (VMU-to-Dreamcast) or Synchronous 8-bit serial interface with 2 transfer channels (VMU-to-VMU)