本帖最后由 805 于 2015-4-11 08:38 编辑 + b0 O) p0 U' S' }; R4 ~% d0 S/ g$ _
9 t% C5 `* `' q2 G7 z7 u, U
- _& t! i0 ?' @' b
这款基板主cpu图形处理器和MD是相同的。主cpu只是有点快(8.94 MHz而非 7.67 兆赫)Z80被删除.它依赖于外部硬件Sega 315-5242彩色编码器增加颜色调色板。调色板是能够产生 4096 种颜色
3 C' `* {( _& E( _4 \; f, r0 m 技术规格./ Y8 m/ m" x) q, u, Q2 P, Q' ]! r& n
Board composition: Single JAMMA board
4 `9 H B4 c+ X- mMain CPU: MC68000 @ 8.948862 MHz (16-bit & 32-bit instructions @ 1.566 MIPS), u4 n7 j P; E$ u- f8 f
Sound chips: Yamaha YM3438 @ 7.670453, SN76496 @ 3.5795459 V I! |0 s& ~: _
Optional sound chip: NEC µPD7759 @ 640 kHz (9-bit ADPCM @ 8 kHz sampling rate)
% a z! _) Q3 y4 T1 GGraphics chips: Yamaha YM7101 VDP, Altera EPM5032, Sega 315-5242 color encoder
; t$ U" z( X' m6 k" `Video resolution: 320×224 pixels
. y3 G! L8 l% T# ^/ D3 {Color palette: 98,304) B' A% L5 r1 l# |2 E
Sega's 16-bit arcade color palette: 15-bit RGB high color depth (32,768 colors) and 1-bit shadow & highlight that triples up to 98,304 colors.3 G# x5 i& P# E0 L/ Z( e
Colors on screen: 6144
~+ V) n- _4 c7 Q
9 n% r2 d/ g9 o5 [+ H |