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The HD64180 is a Z80-based embedded microprocessor developed by Hitachi with an integrated memory management unit (MMU). The Hitachi HD64180 "Super Z80" was later licensed to Zilog and sold by them as the Z64180 and with some enhancements as the Zilog Z180. It has the following features: * Memory Management Unit (MMU) which supports 512k bytes of memory and 64k bytes of I/O space * 12 new instructions were added * Two channel Direct Memory Access Controller (DMAC) * Programmable wait state generator * Programmable DRAM refresh * Two channel Asynchronous Serial Communication Interface (ASCI) * Two channel 16-bit Programmable Reload Timer (PRT) * 1-channel Clocked Serial I/O Port (CSI/O) * Programmable Vectored Interrupt Controller The Micromint SB180 and SemiDisk Systems DT42 CP/M computers and Olivetti CWP 1 and ETV 210s videotypewriters (also running ROM based CP/M 2.2) were based on the Hitachi HD64180. ==See also== *Zilog Z180 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Hitachi HD64180」の詳細全文を読む スポンサード リンク
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