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发表于 2010-3-13 12:00:31
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CPU还是Motorola 68000
http://en.wikipedia.org/wiki/Motorola_68000
The 68EC000 is a microprocessor from Motorola. It is a low-cost version of the Motorola 68000, designed for embedded controller applications. The 68EC000 can have either a 8-bit or 16-bit data bus, switchable at reset.[8]
The processors are available in a variety of speeds including 8 and 16 MHz configurations, producing 2,100 and 4,376 Dhrystones each. These processors have no floating point unit and it is difficult to implement an FPU coprocessor (MC68881/2) with one because the EC series lacks necessary coprocessor instructions.
The 68EC000 was used as a controller in many audio applications, including Ensoniq musical instruments and sound cards where it was part of the MIDI synthesizer.[9] On Ensoniq sound boards, the controller provided several advantages compared to compe**s without a CPU onboard. The processor allowed the board to be configured to perform various audio tasks, such as MPU-401 MIDI synthesis or MT-32 emulation, without the use of a TSR program. This improved software compatibility, lowered CPU usage, and eliminated host system memory usage.
The Motorola 68EC000 core was later used in the m68k-based DragonBall processors from Motorola/Freescale.
It also was used as a sound controller in the Sega Saturn game console, and as a controller for the HP JetDirect Ethernet controller boards for the mid-90s LaserJet printers. |
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发表于 2010-3-13 11:59:34
沉默卡
变色卡
千斤顶
显身卡
发表于 2010-3-13 16:10:33