Sega Y Board
From Sega Retro
The Sega Y Board is an arcade system board released by Sega in 1988. Just like the X Board before it, the Y Board was known for its sprite manipulation capabilities. Unusually, the system uses no tile layers, so graphics are rendered using only sprites.
Specifications
- Main CPU: 3 x MC68000 @ 12.5 MHz
- Sound CPU: Z80 @ 4 MHz
- Sound chip: YM2151 4 MHz & SegaPCM @ 15.625 MHz
- Display resolution: 320 x 224
- Board composition: CPU board + Video board
- Hardware features: a sky gradient; a first sprite layer, which plugs into a full-screen rotation; a second sprite layer on top of them, which has priority; full sprite zooming and scaling on both sprite planes.