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Topic: 65816 Microprocessor


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In the News (Tue 14 Feb 12)

  
 65816 Microprocessor - Article from FactBug.org - the fast Wikipedia mirror site
The 65816 Microprocessor (also: 65C816), a 16-bit CPU developed by the Western Design Center (WDC), is an expanded and compatible successor to the venerable MOS Technology 6502.
The 65816 was also co-manufactured by GTE, Sanyo and a couple of other semiconductor companies during the mid-late '80's and early '90s.
A 6502 pin compatible version of the 65816 was also produced by WDC called the 65802 (also: 65C802) which had restricted memory addressing due to pin compatibility limits, but was otherwise identical.
www.factbug.org /cgi-bin/a.cgi?a=1818605   (236 words)

  
  Spartanburg SC | GoUpstate.com | Spartanburg Herald-Journal   (Site not responding. Last check: 2007-10-26)
The microprocessor was born by reducing the word size of the CPU from 32 bits to 4 bits, so that the transistors of its logic circuits would fit onto a single part.
A seminal microprocessor in the world of spaceflight was RCA's RCA 1802 (aka CDP1802, RCA COSMAC) (introduced in 1976) which was used in NASA's Voyager and Viking spaceprobes of the 1970s, and onboard the Galileo probe to Jupiter (launched 1989, arrived 1995).
These microprocessors were used in the AT&T 3B5 and 3B15 minicomputers; in the 3B2, the world's first desktop supermicrocomputer; in the "Companion", the world's first 32-bit laptop computer; and in "Alexander", the world's first book-sized supermicrocomputer, featuring ROM-pack memory cartridges similar to today's gaming consoles.
www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=microprocessors   (3329 words)

  
  History of Microprocessors
A seminal microprocessor in the world of spaceflight was RCA's RCA 1802 (aka CDP1802, RCA COSMAC) (introduced in 1976) which was used in NASA's Voyager and Viking spaceprobes of the 1970s, and onboard the Galileo probe to Jupiter (launched 1989, arrived 1995).
Other early multi-chip 16-bit microprocessors include one used by Digital Equipment Corporation (DEC) in the LSI-11 OEM board set and the packaged PDP 11/03 minicomputer, and the Fairchild Semiconductor MicroFlame 9440, both of which were introduced in the 1975 to 1976 timeframe.
These microprocessors were used in the ATandT 3B5 and 3B15 minicomputers; in the 3B2, the world's first desktop supermicrocomputer; in the "Companion", the world's first 32-bit laptop computer; and in "Alexander", the world's first book-sized supermicrocomputer, featuring ROM-pack memory cartridges similar to today's gaming consoles.
www.computernostalgia.net /articles/HistoryofMicroprocessors.htm   (2685 words)

  
 Microprocessor - Information from Reference.com
Microprocessors are classified by the semiconductor technology of their design (TTL, transistor-transistor logic; CMOS, complementary-metal-oxide semiconductor; or ECL, emitter-coupled logic), by the width of the data format (4-bit, 8-bit, 16-bit, 32-bit, or 64-bit) they process; and by their instruction set (CISC, complex-instruction-set computer, or RISC, reduced-instruction-set computer; see RISC processor).
A microprocessor (sometimes abbreviated µP) is a programmable digital electronic component that incorporates the functions of a central processing unit (CPU) on a single semiconducting integrated circuit (IC).
The microprocessor was born by reducing the word size of the CPU from 32 bits to 4 bits, so that the transistors of its logic circuits would fit onto a single part.
www.reference.com /search?q=Microprocessor   (3729 words)

  
 Top Literature - 65816 Microprocessor
The WDC 65816 (also: 65C816), a 16-bit microprocessor CPU developed by the Western Design Center (WDC), is an expanded and compatible successor to the venerable MOS Technology 6502.
The 65816 was second-sourced by GTE, Sanyo and a couple of other semiconductor companies from the mid-to-late 1980s to the early 1990s.
All of the bank select registers, etc., from the 65816, are still intact in the 65802 CPU core, they just have no effect when used.
encyclopedia.topliterature.com /?title=65816_Microprocessor   (690 words)

  
 WDC 65816/65802 - Facts, Information, and Encyclopedia Reference article
The WDC 65816 (also: 65C816), a 16-bit microprocessor CPU developed by the Western Design Center (WDC), is an expanded and compatible successor to the venerable MOS Technology 6502.
The 65816 was second-sourced by GTE, Sanyo and a couple of other semiconductor companies from the mid-to-late 1980s to the early 1990s.
All of the bank select registers, etc., from the 65816, are still intact in the 65802 CPU core, they just have no effect when used.
www.startsurfing.com /encyclopedia/6/5/8/65816_Microprocessor_e8c4.html   (317 words)

  
 Microprocessor   (Site not responding. Last check: 2007-10-26)
WDC pioneered the licensing of microprocessor technology which was later followed by ARM and other microprocessor IP providers in the 1990’s.
These microprocessors were used in the AT&T 3B5 and 3B15 minicomputers; in the 3B2, the world's first desktop supermicrocomputer; in the "Companion", the world's first 32-bit laptop computer; and in "Alexander", the world's first book-sized supermicrocomputer, featuring ROM-pack memory cartridges similar to today's gaming consoles.
Though the term "microprocessor" has traditionally referred to a single- or multi-chip CPU or SoC, several types of specialized processing devices have followed from the technology.
www.dejavu.org /cgi-bin/get.cgi?ver=93&url=http%3A%2F%2Farticles.gourt.com%2F%3Farticle%3DMicroprocessor%26type%3Den   (3093 words)

  
 Il mio angolo - An Interview With William Mensch
He was a member of the design team—at MOS Technology—that developed the 6502 microprocessor which is used in one form or another in Apple, Atari, and Commodore 8-bit computers.
Well, the 65816, when it runs at the same speed as the Intel processors—meaning the 8086 and the 80286 or the 80386—one of our bus cycles equals four of theirs.
Western Design Center is the forerunner, or at least it appears to be the forerunner, in microprocessor technology in CMOS in [terms of] applications-specific core microprocessor use and licensing.
www.1000bit.net /support/articoli/apple/a2gs/william_mensch.asp   (3866 words)

  
 Microprocessor
The central processing unit (CPU) is the most well known microprocessor, but many other components in a computer have them, such as the GPU on a video card.
From humble beginnings as the drivers for calculators, the continued increase in power has led to the dominance of microprocessors over every other form of computer; every system from the largest mainframes to the smallest handheld computers now use a microprocessor at their core.
A seminal microprocessor in the world of spaceflight was RCA's RCA 1802 (aka CDP1802, RCA COSMAC) which was used in NASA's Voyager and Viking spaceprobes of the 1970s, and onboard the Galileo probe to Jupiter (launched 1989, arrived 1995).
www.ufaqs.com /wiki/en/mi/Microprocessor.htm   (2777 words)

  
 MOS Technologies 65816: Definition and Links by Encyclopedian.com
The 65816 is a microprocessor designed by Western Design Center (http://www.westerndesigncenter.com).
The 65816 microprocessor was also used in the Super Nintendo video game console released in 1991.
Post a link to definition / meaning of " MOS Technologies 65816 " on your site.
www.encyclopedian.com /mo/MOS-Technologies-65816.html   (128 words)

  
 65816‚ÉŠÖ‚µ‚Ä   (Site not responding. Last check: 2007-10-26)
65816 An expanded version of the 6502, with which it is compatible.
The 65816 was designed to be able to address up to 16 MB of memory.
The 65816 was used in the SNES, and given its immense popularity, I'd consider the chip to be wildly successful...
www.groundcross21.com /3635383136   (1613 words)

  
 6502 - Definition
An eight-bit microprocessor designed by MOS Technologies around 1975 and made by Rockwell.
The 65816 is an expanded version of the 6502.
There is a 6502 assembler by Doug Jones which supports macros and conditional features and can be used for linkage editing of object files.
www.hyperdictionary.com /dictionary/6502   (281 words)

  
 block diagram of intel 8008 microprocessor   (Site not responding. Last check: 2007-10-26)
Results for: block diagram of intel 8008 microprocessor esoterics laboratory what...
65816 microprocessor that Apple Computer chose as the microprocessor, the operating system,.Block diagram...
It was Intel's first 32-bit microprocessor, and provided 32 bits on both the...
www.lvm-markoetter.de /blockdiagramofintel8008microprocessor-5878   (221 words)

  
 Western Design Center (WDC) Home of the 65xx Microprocessor
The legendary 65xx brand microprocessors with both 8-bit and 8/16-bit ISA’s keep cranking out the unit volumes in ASIC and standard microcontroller forms supplied by WDC and WDC’s licensees.
Annual volumes in the hundreds (100’s) of millions of units keep adding in a significant way to the estimated shipped volumes of five (5) to ten (10) billion units.
As added food for thought, the 65xx microprocessors protect millions of lives annually within embedded heart defibrillation and pacing systems.
www.westerndesigncenter.com   (386 words)

  
 [No title]
Read/Write (R/W) When the R/W output signal is in the high state, the microprocessor is reading data from memory or I/O. When in the low state, the Data Bus contains valid data from the microprocessor which is to be stored at the addressed memory location.
A low input logic level will halt the microprocessor in its current state (note that when in the Emulation mode, the G65SC802 stops only during a read cycle).
The "long" addressing modes may be used with the G65SC802; however, the high byte of the address is not available to the hardware.
patpend.net /technical/65816/65c816.txt   (3411 words)

  
 Apple II History Chap
While the capabilities of the Apple II slowly advanced as it changed from the II up through the IIc, the one thing that remained essentially unchanged was the 6502 microprocessor that controlled it.
Even though the 65c02 had more commands than the 6502, as an 8-bit processor it was inherently limited to directly addressing no more than 64K of memory at one time.
When he saw what the 65816 could do, he became excited about the potential of the new Apple II and immediately got involved.
www.apple2history.org /history/ah10.html   (2934 words)

  
 Apple II History Museum - Articles
He passed out a reprint of an article published in Microprocessor Report in its July 11, 1994 issue, that discussed the various products made by WDC, both old and new, as well as a historical background of the 6502.
I was able to obtain permission from Micro Design Resources, the company that publishes this newsletter, to reproduce here the sidebar part of the article that dealt specifically with that history.
MOS Technology was, at the time, the world's largest manufacturer of calculator chips, and it decided to move up to microprocessors.
apple2history.org /museum/articles/microreport/microreport.html   (1149 words)

  
 Microprocessor information - Search.com   (Site not responding. Last check: 2007-10-26)
Microprocessors, including an Intel 80486DX2 and an Intel 80386.
A microprocessor (sometimes abbreviated µP) is a digital electronic component with miniaturized transistors on a single semiconductor integrated circuit (IC).
The CDP1802 was used because it could be run at very low power,* and because its production process (Silicon on Sapphire) ensured much better protection against cosmic radiation and electrostatic discharges than that of any other processor of the era.
c10-ss-1-lb.cnet.com /reference/Microprocessor?redir=1   (3163 words)

  
 6502@Everything2.com
Too many lazy coders rely on this, which may be problematic for users of 65816...
microprocessor, which we all know and love, is fully compliant with the
The 6502 is an 8-bit microprocessor with a 16-bit address bus.
www.everything2.com /index.pl?node=6502   (1146 words)

  
 Coinop.org /// Coinop.org /// Downloading: /KB/datasheets/65816/65c816.txt (text file)
A software switch determines whether the processor is in the 8-bit ernulation mode or in the Native 16-bit mode.
Index (X and Y) There are two Index Registers (X and Y) which may be used as general purpose registers or to provide an index value for calculation of the effective address.
During the low power Standby Mode, Phi2 (IN) should be held in the high state to preserve the contents of internal registers.
www.coinop.org /kb_dl.aspx/KB/datasheets/65816/65c816.txt   (2398 words)

  
 External memory system having programmable graphics processor for use in a video game system or the like - Patent ...
A fully programmable, graphics microprocessor is embodied in a removable external memory unit for connection with a host information processing system.
Prior art video game machines having an 8-bit microprocessor and an associated display processing subsystem embodied in a video game control deck typically generate graphics by prestoring characters in a game cartridge in the form of 8-bit by 8-bit matrices and by building a screen display using various programmable combinations of these prestored characters.
The Mario chip 2 is a pipelined microprocessor which fetches the next instruction to be executed while it is executing the current instruction.
www.freepatentsonline.com /5388841.html   (18378 words)

  
 Bill Mensch
, originally of Bucks County, Pennsylvania, is a co-inventor of the MOS Technology 6502 microprocessor, and the inventor of several 6502 derivatives including the 65C02 and 65816.
He is the founder, chairman and CEO of the Western Design Center (WDC) of Mesa, Arizona.
In addition, the Western Design Center produces a hobbyist computer system called the Mensch Computer, based on the 65816 microprocessor and running the Mensch Works suite of software.
www.brainyencyclopedia.com /encyclopedia/b/bi/bill_mensch.html   (406 words)

  
 8-Bit Product Reviews: Turbo816 / hardware
From: jjmcwill@mathlab.mtu.edu Subject: Turbo816 / hardware Date: Mon Apr 12 21:02:06 1993 The Turbo816 is a 65816 microprocessor that runs at the normal clock speed of the computer.
If a 65816 is running with a memory card, the largest contigous block of RAM was usable by the spreadsheet.
These same signals should be somehow usable in wiring up a SIMM that was addressed through the 65816, since the 65816 is still wired up in SYNC with the ANTIC.
www.atariarchives.org /cfn/05/10/0071.php   (878 words)

  
 commodore.ca | History | Bill Mensch - MOS 6052, Apple, & Western Design Center   (Site not responding. Last check: 2007-10-26)
We have added several of his interesting stories to those articles and so you may be interested in reviewing them as well.
He single handedly designed the 16-bit 65816 microprocessor that Apple Computer chose as the central processing unit (CPU) for its new Apple IIgs.
How has the design process changed from when you first worked on the 6502 to the development of the 65816—is it a team effort, or is it primarily one or two people?
www.commodore.ca /history/people/bill_mensh/bill_mensch.htm   (3945 words)

  
 MOS Technology 6510 - Biocrawler   (Site not responding. Last check: 2007-10-26)
The MOS Technology 6510 is a microprocessor designed by MOS Technology, Inc., and is a direct successor of the very successful 6502.
The primary changes from the 6502 were the addition of clock pins, which allowed the chip to make use of external clocks, and the addition of I/O ports which allowed the CPU to handle simple I/O tasks without needing the 6522 VIA.
Single board computers (kits), and microprocessors: MOS/CBM KIM-1
www.biocrawler.com /encyclopedia/MOS_Technology_8500   (281 words)

  
 Bill Mensch at AllExperts
Based on his participation in the basic circuit design, definition, and system design of the Motorola 6800 microprocessor and supporting computer chips, Mensch is a co-holder of several 6800 family patents, including the 6800 CPU, 6820/21 PIA, 6850 ACIA, and 6860 modem chip.
He was responsible for the basic circuit design, transistor sizing, instruction decode logic (attaining to minimize the number of levels of logic so as to achieve higher speed operation), oscillator design and buffer design.
The first major effort of Mensch and his team at the Western Design Center was the development of the WDC 65C02, a bug-fixed version of the 6502 CPU implemented in CMOS circuit technology (the original 6502 was made in NMOS).
en.allexperts.com /e/b/bi/bill_mensch.htm   (664 words)

  
 Great Microprocessors of the Past and Present   (Site not responding. Last check: 2007-10-26)
A microprocessor generally means a CPU on a single silicon chip, but exceptions have been made (and are documented) when the CPU includes particularly interesting design ideas, and is generally the result of the microprocessor design philosophy.
The LSI-11 (1975-ish) was a popular microprocessor implementation of the PDP-11 using the Western Digital MCP1600 microprogrammable CPU, and the architecture influenced the Motorola 68000, NS 320xx, and Zilog Z-8000 microprocessors in particular.
The Swordfish was among the first truely supserscalar microprocessors, with two 5-stage pipelines (integer A, and B, which consisted of an integer and floating point pipeline - an instruction dispatched to B would execute in the appropriate pipe, leaving the other with an empty slot.
bwrc.eecs.berkeley.edu /CIC/archive/cpu_history.html   (15782 words)

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