Date: Sun, 09 Nov 1997 20:07:22 -0600 From: David Kelly <dkelly@hiwaay.net> To: hackers@FreeBSD.ORG Subject: Re: IDT processors? Message-ID: <199711100207.UAA08730@nospam.hiwaay.net>
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> Jamil J. Weatherbee scribbled this message on Nov 9: > > Did anyone ever notice that 80386 backwards in 68308, does that mean that > > intel crap is just ass backwards motorola 68000's? > > What is the highest 68000 at this time 68400? How fast? > > the 68k line had numbers of 680[0-4]0... and the fastest clock for the > 68040 was 33mhz... the only similarities would be the 86 and 68.. There was/is a 68060. No one remembers it because Apple never shipped one. There were 50 MHz accelerator boards available for Macs, might have only been 68030's. And wasn't the IIfx a 68030 at 40 MHz? And the Quadra 950 was an '040 at 40 MHz? (The Quadra 900 was '040 at 33). In the embedded arena there is the 68302, probably used in most ISDN boxes as its (3) RISC-based communications ports makes it a natural. Also Motorola *said* it was targeted for ISDN use. The 68306 is a super cheap embedded 68k. Another similar part (possibly a 68308 like IDT's number) was a 68k with 8051-like bus interface. Moving up, there is the 68340 with CPU-32 core (think 68020). Another part with most of the interesting stuff rolled onto one chip for embedded use. One of the most interesting features is the BDM port, 10 pin interface for a low cost Background Debugging Mode. At about the top, the 68360 has a CPU-32+ core and (4) communications ports similar to the 68302 but better. A mask pinout option turns one port into an ethernet port. Motorola has been mirroring this product line with their ColdFire series using PowerPC cores. I think the ColdFire CPU's emulate 68k instructions, or there is a 68k binary-to-ColdFire translator. Motorola was recently offering a very interesting ColdFire prototyping kit, a ColdFire MB with 512k DRAM, ethernet, an ISA ethernet card, and software tools for something like $150 or $99.95. I wanted one, but accepted the fact that I don't have time to play with one. -- David Kelly N4HHE, dkelly@hiwaay.net ===================================================================== The human mind ordinarily operates at only ten percent of its capacity -- the rest is overhead for the operating system.
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