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Topic: Zilog Z280

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	Zilog - Wikipedia, the free encyclopedia
		Zilog, often seen as ZiLOG, is a manufacturer of 8-bit CPUs, and is most famous for its Intel 8080-compatible Z80 series.
		Zilog was incorporated in California in 1974 by Federico Faggin, who left Intel after working on the 8080, and the Z80 was a vast improvement over it (it was faster, etc.).
		After the Z80 Zilog introduced 16-bit and 32-bit processors, but these were not particularly successful, and the company refocused on the microcontroller market, producing both basic CPUs and application-specific integrated circuits/standard products (ASICs/ASSPs) built around a CPU core.
	en.wikipedia.org /wiki/ZiLOG (259 words)

	Wikipedia: ZiLOG
		ZiLOG, often seen as Zilog, is a manufacturer of 8-bit CPUs, and are most famous for their Intel 8080-compatible Z80 series.
		Zilog was incorporated in California in 1974 by Federico Faggin, who left Intel after working on the 8080, and the Z80 shared many features with it.
		Later Zilog introduced 16-bit and 32-bit processors, but these were not particularly successful, and the company refocussed on the microcontroller market, producing both basic CPUs and application-specific standard products (ASSPs) built around a CPU.
	www.factbook.org /wikipedia/en/z/zi/zilog.html (170 words)

	Zi from FOLDOC
		Zilog now produce a range of 8-bit microcontrollers, 8-, 16- and 32-bit microprocessors, and digital signal processors, covering the home entertainment, communications, and embedded systems markets.
		Zilog Z8 processor> A family of microcontrollers from Zilog with on-chip RAM and ROM.
		The Zilog Z280 was an enhanced version with an MMU and many new op codes.
	foldoc.org /?query=Zi (1294 words)

	Zilog Z80 - Biocrawler (Site not responding. Last check: 2007-10-31)
		Although Zilog made several attempts to move off the Z80 onto more powerful 16-bit (Zilog Z800, Zilog Z8000, Zilog Z180, Zilog Z280) and 32-bit (Zilog Z80000, Zilog Z380) platforms, other companies were offering CPUs in this performance range years earlier, and the Zilog chips never caught on.
		Zilog’s most recent CPU is the Zilog eZ80, a faster Z80 with a 24 MB addressing range.
		The Zilog Z80 has also become a popular embedded microprocessor and microcontroller core, where it remains in widespread use today.
	www.biocrawler.com /encyclopedia/Zilog_Z80 (883 words)

	[No title]
		Zilog is presently only shipping sample quantities, and word from the people who call me is that they no longer will ship the samples free of charge.
		It certainly appears that the 1mb dram and the Z280 processor are basically in the same state (sampling), therefore, it is not unreasonable to expect that when we have good quantity of one, we will have the other.
		The Z280 divides the "basic" clock speed of 10 mhz down by 2 again (the external XTAL speed divided by 4) and outputs this as the Z80 bus clock.
	df.lth.se /~pi/compis/files/ftp.mayn.de/pub/cpm/archive/z280/zedux.inf (2069 words)

	ZiLOG often seen as Zilog is a manufacturer of 8...
		"ZiLOG", often seen as "Zilog", is a manufacturer of 8-bit 8-bit CPU CPUs, and is most famous for its Intel 8080 Intel 8080-compatible Z80 Z80 series.
		Zilog was incorporated in California California in 1974 1974 by Federico Faggin Federico Faggin, who left Intel Intel after working on the 8080, and the Z80 shared many features with it.
		Later Zilog introduced 16-bit 16-bit and 32-bit 32-bit processors, but these were not particularly successful, and the company refocused on the microcontroller microcontroller market, producing both basic CPUs and application-specific standard product application-specific standard products (ASSPs) built around a CPU.
	www.biodatabase.de /ZiLOG (249 words)

	[No title]
		On the Z280, the instruction time cannot even be measured reliably; The cache and pipeline make the time to execute an instruction dependent on the "history" of activity before.
		Although the best solution is to directly REPLACE the Z80 by the Z280, for people who do not have specific details on their machine (schematics and software listings) or the expertise to diagnose problems, a virtually 100% compatible solution is provided by the coprocessor version of the adapter board.
		When the Z280 requires I/O service, a "request" packet is passed to the Z80 CPU, which reads or writes the requested data, and returns the results to the Z280 CPU.
	www.df.lth.se /~pi/compis/files/ftp.mayn.de/pub/cpm/archive/z280/zadapter.inf (1685 words)

	Zilog Z80 - CompWisdom (Site not responding. Last check: 2007-10-31)
		Zilog shrunk (they were once owned by Exxon!) because they went from 1 8 bit Z80 hugely successful processor to a pure 16 bit processor (Z8000?).
		Zilog has added more instructions and changed mnemonics, but the basic core of instructions works the same and has the same opcodes in both 8080 and Z80.
		Zilog adopted a different (and more logical) set of mnemonics, possibly because Intel claimed that the 8080 mnemonics were copyrighted.
	www.compwisdom.com /topics/Zilog-Z80 (2762 words)

	Know it all Inc. (Z) (Site not responding. Last check: 2007-10-31)
		Zilog The {microprocessor} manufacturer who produced the {Zilog Z80} in July 1976 and later the {Zilog Z8000}.
		History?] (22 Apr 1995) Zilog Z280 An enhanced version of the {Zilog Z80} with a 16 bit architecture, introduced in July, 1987.
		A later version, the {Zilog Z80000}, was expanded to 32 bits internally, and was fully {pipeline}d (6 stages).
	artikbre.synchro.net /docs/Z.html (2887 words)

	ZiLOG - Encyclopedia, History, Geography and Biography
		Zilog was incorporated in California in 1974 by Federico Faggin, who left Intel after working on the 8080, and the Z80 was a vast improvement over it (it was faster, etc.).The Z80 was a best seller because it was much cheaper than the 8080.
		This page was last modified 08:55, 30 April 2006.
		ZiLOG, List of ZiLOG products, External links and Electronics companies of the United States.
	www.arikah.net /encyclopedia/Zilog (269 words)

	[No title] (Site not responding. Last check: 2007-10-31)
		The Z280 runs all Z80 instructions (and therefore all 8080 instructions) and includes an expanded set of 45 new instructions plus additional addressing modes.
		The Zilog Z280 is a highly integrated CPU, major functions are a paged memory-management unit with a 256-byte data and instruction cache, three-stage instruction pipelining, a four-channel DMA controller, three 16-bit counter/timers, a six-stage wait-state generator, a DRAM refresh controller, and a high-speed UART with rates up to 2.5 mHz.
		The Ultraboard's Z280 on-board Cache Memory automatically stores all recently used instructions and/or data, so the processor has instant access to them for memory fetches, and subsequent disk and memory accesses are eliminated.
	www.retroarchive.org /cpm/cdrom/CPM/Z280/Z280-GNE.INF (853 words)

	[No title]
		Communication between processors is accomplished via an 8 bit "inter - CPU" communications chip (in fact, a registered bi - directional transceiver).
		The main incompatibility between the Z280 (in the Z80 bus mode) and the Z80 is the action of the M1 signal.
		Having examined the "Z800" advance specification (in late 1985), and having obtained a 256kb memory board, I set up a quick fix that would carry forward readily to the Z280.
	www.df.lth.se /~pi/compis/files/ftp.mayn.de/pub/cpm/archive/z280/zedux.inf (2069 words)

	[No title] (Site not responding. Last check: 2007-10-31)
		Zilog decided to define a plethora of new data types for this processor, so for each type there exists a mult/ divide instruction.
		The Z280 is the updated name for the Z800...I think that there are actually chips available, but the first ones have problems with the cache.
		As far as I know the Z280 is the same chip as the one announced as Z800 some years ago.
	www.retroarchive.org /cpm/cdrom/SIMTEL/ARCHIVES/CPM/8904-1.TXT (11164 words)

	zilog z80 -
		An enhanced instruction zilog z80 set including new IX and IY index registers and instructions for them
		Two separate register files, which could be quickly switched, to speed up response to interrupts
		Many classic coin-op arcade games used the Z80 as a main CPU or sound coprocessor.
	www.infotechloco.com /Inf-Computer-Topics-Sy---Z/Zilog-Z80.html (877 words)

	ZiLOG often seen as Zilog is a manufacturer...
		ZiLOG often seen as Zilog is a manufacturer...
		Later Zilog introduced 16-bit and 32-bit processors, but these were not particularly successful, and the company refocused on the microcontroller market, producing both basic CPUs and application-specific standard products (ASSPs) built around a CPU.
		A copy of the license is included in the section entitled
	www.geodatabase.de /ZiLOG (213 words)

	Middle East Open Encyclopedia: ZiLOG (Site not responding. Last check: 2007-10-31)
		This is an extract from The Middle East Open Encyclopedia, made possible through the Wikimedia Foundation.
		Iraq Museum International always displays the most recent published revision of the source article, ZiLOG; all previous versions may be viewed here.
		They link directly to authoring tools for you to start writing a particular article.
	www.baghdadmuseum.org /ref/?title=ZiLOG (375 words)

	ZiLOG
		Zilog manufactures 8-bit CPUs, and is most famous for its Intel 8080-compatible Z80 series.
		Crimzon™ - The Crimzon™ ZLP32300 OTP MCU is the newest member of ZiLOG's family of microcontrollers intended for use in applications requiring infrared transmission capability.
		Search for ZiLOG products in ChipSeeker's Semiconductor Search, also try Chipseeker's Electronic Component Search, Connector Search or Die Search.
	www.chipseeker.com /semiconductors/zilog-semiconductor.html (617 words)

	dictionary z (Site not responding. Last check: 2007-10-31)
		{Zilog Z80} in July 1976 (as used by {Sinclair} in the
		Zilog was founded in 1974 and became a wholly owned subsidiary
		Zilog now produce a range of 8-bit {microcontrollers}, 8-, 16-
	www.star-cs.com /peterstar/z.html (2505 words)

	Stuff for Sale (Site not responding. Last check: 2007-10-31)
		I managed to produce a surprisingly complete implementation, despite the Z80's measly 64K memory and lack of memory management or protection hardware.
		Soon afterwards I upgraded my CP/M computer system to a Zilog Z280 processor, which had fairly fancy memory management (for a 16-bit machine, at least) and supported user and system modes.
		(Unfortunately Zilog botched up the Z280 developement so badly that the chip came out years late and very buggy, just as 80X86 processors and PCs became ubiquitous.)
	www.dougbraun.com /uzi.html (155 words)

	[No title]
		Event of the season, early summer sees first board released using Zilog Z280 chip (Z-News 705-4, 707-4).
		Knowing the Z280 cache data and instruction capability, we at Echelon believe it will.
		Routines optimized, use Zilog mnemonics and opcodes--complete re-write.
	www.retroarchive.org /cpm/cdrom/CPM/ZCPRNEWS/Z-NEWS.708 (2391 words)

	Thomas Scherrer Z80-Family Official Support Page
		Zilog, Inc. Thanks to Zilog, they made it (the chip)
		Zilog Z80382 8-Bit Microprocessor Brief Description, Block Diagram and Pinout
		Z80 PIO (ZIP'ed GIF files) the whole Zilog data sheet
	www.geocities.com /SiliconValley/Peaks/3938/z80_home.htm (964 words)

	Looking for Z280 Zilog CPU and FDC 37C65 B/C
		Looking for Z280 Zilog CPU and FDC 37C65 B/C
		Posted: Wed Jul 06, 2005 12:35 am Post subject: Looking for Z280 Zilog CPU and FDC 37C65 B/C
		Does someone has one (or more..) or knows a company
	www.electronicshelp.net /ntopic8027.html (96 words)

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