Zilog Z280: Difference between revisions
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The '''Zilog Z280''' is an enhanced version of the [[Zilog Z80]] with a [[16 bit]] architecture, introduced in [[July 1987]]. It added a [[memory management unit]] (MMU) to expand addressing to 16[[Mb]], features for [[multitasking]], a 256 byte cache, and a huge number of new [[opcode]]s (giving a total of over 2000). Its [[internal clock]] runs at 2 or 4 times the [[external clock]] (e.g. a 16[[MHz]] [[CPU]] with a 4MHz [[computer bus|bus]]). |
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The '''Z280''' is a [[Zilog]] 16 bit, [[Zilog Z80|Z80]] compatible processor from [[1987]], essentially a [[CMOS]] version of the older [[NMOS]] [[Z800]]. |
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Revision as of 12:54, 31 May 2006
The Zilog Z280 is an enhanced version of the Zilog Z80 with a 16 bit architecture, introduced in July 1987. It added a memory management unit (MMU) to expand addressing to 16Mb, features for multitasking, a 256 byte cache, and a huge number of new opcodes (giving a total of over 2000). Its internal clock runs at 2 or 4 times the external clock (e.g. a 16MHz CPU with a 4MHz bus).
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