SEGA GENESIS SPECS

Main System/CPU:

Model Number: MK-1601 (r1), MK-1631 (r2).
CPU: Motorola 68000 at 7.61 MHz
1 MByte (8 Mbit) ROM Area
64 KByte RAM Area
Co-Processor: Z80 @ 4 MHz (Not Present in MK-1631)
Controls PSG (Programmable Sound Generator) & FM Chips
8 KBytes of dedicated Sound Ram

Graphics:

64 simultaneous colors on screen of 512 colors avilable.
Pixel resolution: 320 x 224
VDP (Video Display Processor)
Dedicated video display processor
Controls playfield & sprites
64 KBytes of dedicated VRAM (Video Ram)
64 x 9-bits of CRAM (Color RAM)
3 Planes: 2 scrolling playfields, 1 sprite plane

Sound:

PSG (TI 76489 chip)
FM chip (Yamaha YM 2612)
6-channel stereo
8 KBytes RAM
Signal/Noise Ratio: 14dB


SEGA CD

Main System/CPU

Model Number: MK-1690 (r1), MK-4102 (r2)
CPU: Motorola 68000 @ 12.5MHz

Memory:

6Mbit (Program, picture data, sound data)
512Kbit (PCM waveform memory)
128Kbit (CD-ROM data cache memory)
64Kbit (Backup memory)
1Mbit (Boot ROM)

Sound:

PCM Sound Source:
Stereo, 8 Channels.
Sampliing wavelength: 32MHz max.

D/A Convertor:

16-bit D/A convertor
8x Internal over-sampling digital filter
PCM and CD sound mixing.
Mixing with mixing terminal possible

Audio Characteristics:

Wavelength characteristics: 20Hz-20kHz
. Signal/Noise Ratio: Over 90dB (1kHz) (Line Out).
Stereo channel separation: Over 90dB.

Misc:

Battery Backup Durection: Approx. 1 month
1x CD-Rom Drive Speed (150kb/s)
Audio Out: L/W RCA pin jack. (Adds Sterio Audio)
Dimensions (WHD): 301mm x 212.5mm x 112.5mm (r1),


SEGA 32X

Model Number: MK-84000 or MK-84000a.
CPU: Dual Hitachi SH-2 RISC Processors @ 23 MHz each, 40MIPS.

Co-Processors:

Genesis 68000, and Z80
Genesis 32X VDP

Graphics:

32,768 simultaneous colours on screen

Genesis resolution:

Overlaying over existing Genesis/SegaCD video
50,000 texture-mapped polygons/sec
Texture mapping
Hardware scaling and rotation

Sound:

Stereo PCM chip
Audio mixing with Genesis sound
Additional 2 channels (8 Channels total, or 16 with SegaCD)