VMU hardware overview: Difference between revisions

From dreamcast.wiki

Revision as of 16:33, 12 January 2020

CPU: 8-bit Sanyo LC86K87 @ 6Mhz (attached to controller) or 32Khz (standalone)
RAM: 256 bytes for applications, 256 reserved for system BIOS, 512 bytes WRAM
Flash: 128 KB (200 blocks)
Power source: Two CR2032 batteries with auto-off function
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
Timer: 16-bit clock-timer, 16-bit (or 2x 8-bit) counters
Serial Interface: Dedicated Maple interface (VMU-to-Dreamcast) or Synchronous 8-bit serial interface with 2 transfer channels (VMU-to-VMU)

@@ Line 7: / Line 7: @@
 * '''Sound''': PWM sound chip, 1-channel PWM sound source
 * '''Timer''': 16-bit clock-timer, 16-bit (or 2x 8-bit) counters
-* '''Serial Interface''': Dedicated Maple interface (connected to controller) or Synchronous 8-bit serial interface with 2 transfer channels (standalone)
+* '''Serial Interface''': Dedicated Maple interface (VMU-to-Dreamcast) or Synchronous 8-bit serial interface with 2 transfer channels (VMU-to-VMU)