Zilog Z80B - definitie. Wat is Zilog Z80B
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Wat (wie) is Zilog Z80B - definitie

8-BIT MICROPROCESSOR
Z80; Zilog z80; Z80a; Zilog Z-80; Z80 A; Z-80; Z80A; Sharp LH0080; NEC uPD780C; ZiLOG Z80; Z-80A; Sharp LH-0080; Zilog Z80A; NEC D780C; D780C; UPD780C; NEC 780C; ΜPD780C-1; Z80 instruction set; Z80 architecture; NEC μPD9002; Z80 microprocessor; Z80H; Z80B; Z80A-CPU-D; Sharp Z80A-CPU-D; LH0080A; Sharp LH0080A; Zilog Z80B
  • The Z80A was used as the CPU in a number of gaming consoles, such as this [[ColecoVision]].
  • Z80-based [[PABX]]. The Z80 is the third chip from the left, to the right of the chip with the hand-written white label on it.
  • title=Down to the silicon: how the Z80's registers are implemented}}</ref>
  • DIP40]] chip package pinout
  • A [[CMOS]] Z80 in a [[quad flat package]]
  • Sinclair]] [[ZX Spectrum]] which used a Z80 Clocked at 3.5 MHz
  • A May 1976 advertisement for the Zilog Z-80 8-bit microprocessor

Z8000         
16-BIT MICROPROCESSOR
Z8000; Z8001; Zilog Z16C01; Zilog Z8001; Zilog Z8002; Zilog Z-8000; U8000; Zilog Enhanced UNIX System; Zilog ZEUS; ZEUS (Zilog); ZEUS (Unix); Zilog System 8000 UNIX
Zilog Z8000         
16-BIT MICROPROCESSOR
Z8000; Z8001; Zilog Z16C01; Zilog Z8001; Zilog Z8002; Zilog Z-8000; U8000; Zilog Enhanced UNIX System; Zilog ZEUS; ZEUS (Zilog); ZEUS (Unix); Zilog System 8000 UNIX
<processor> A microprocessor from Zilog introduced not long after the Intel 8086, but with superior features. It was basically a 16-bit processor, but could address up to 23 bits in some versions by using segment registers (to supply the upper 7 bits). There was also an unsegmented version, but both could be extended further with an additional MMU that used 64 segment registers. Internally, the Z8000 had sixteen 16-bit registers, but register size and use were exceedingly flexible. The Z-8000 registers could be used as sixteen 8-bit registers (only the first half were used like this), sixteen 16-bit registers, eight 32-bit registers, or four 64-bit registers, and included 32-bit multiply and divide. They were all general purpose registers - the stack pointer was typically register 15, with register 14 holding the stack segment (both accessed as one 32-bit register for painless address calculations). The Z8000 featured two modes, one for the operating system and one for user programs. The user mode prevented the user from messing about with interrupt handling and other potentially dangerous stuff. Finally, like the Zilog Z80, the Z8000 featured automatic DRAM refresh circuitry. Unfortunately it was somewhat slow, but the features generally made up for that. Initial bugs also hindered its acceptance (partly because it did not use microcode). There was a radiation resistant military version. There was a later 32-bit, pipelined version, the {Zilog Z80000}. (1997-12-16)
Zilog         
AMERICAN MANUFACTURER OF MICROPROCESSORS
Curtis J. Crawford; ZiLOG; Multi-functional Operating System; Crawford, C. J.; Crawford, Curtis J.; Curtis Crawford; Zilog, Inc.
<company> The microprocessor manufacturer who produced the Zilog Z80 in July 1976 (as used by Sinclair in the ZX-80, ZX-81 and ZX Spectrum computers) and later the Zilog Z8000. Zilog was founded in 1974 and became a wholly owned subsidiary of Exxon Corp. by 1980. The company's management and employees purchased Zilog back from Exxon in 1989. Zilog became a publicly-held company in February, 1991. In March of 1998, Zilog was privatised, as a result of the merger and recapitalisation transaction by Texas Pacific Group (TPG). 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. http://zilog.com/. Address: 910 East Hamilton Avenue, Suite 110, Campbell, CA 95008, USA. (1998-09-14)

Wikipedia

Zilog Z80

The Z80 is an 8-bit microprocessor introduced by Zilog as the startup company's first product. The Z80 was conceived by Federico Faggin in late 1974 and developed by him and his 11 employees starting in early 1975. The first working samples were delivered in March 1976, and it was officially introduced on the market in July 1976. With the revenue from the Z80, the company built its own chip factories and grew to over a thousand employees over the following two years.

The Zilog Z80 is a software-compatible extension and enhancement of the Intel 8080 and, like it, was mainly aimed at embedded systems. Although used in that role, the Z80 also became one of the most widely used CPUs in desktop computers and home computers from the 1970s to the mid-1980s. It was also common in military applications, musical equipment such as synthesizers (like the Roland Jupiter-8), and coin-operated arcade games of the late 1970s and early 1980s, including Pac-Man.

Zilog licensed the Z80 to the US-based Synertek and Mostek, which had helped them with initial production, as well as to a European second-source manufacturer SGS. The design was also copied by several Japanese, East European and Soviet manufacturers. This won the Z80 acceptance in the world market since large companies like NEC, Toshiba, Sharp, and Hitachi started to manufacture the device (or their own Z80-compatible clones or designs).

In recent decades Zilog has refocused on the ever-growing market for embedded systems, and the most recent Z80-compatible microcontroller family, the fully pipelined 24-bit eZ80 with a linear 16 MB address range, has been successfully introduced alongside the simpler Z80 and Z180 products.