发明名称 |
Single chip microprocessor with on-chip modifiable memory |
摘要 |
A microprocessor architecture which permits automatic programming of a non-volatile memory included on the same chip as a processing and control unit. The microprocessor includes a permanent memory such as an EPROM which can be electrically written word by word. The microprocessor additionally includes a processing and control unit connected to the permanent memory through two sets of data and address registers. Circuits are also included for distributing memory write voltage in a manner which does not interfere with normal operation of the microprocessor. As a result, the data contents at one memory location can be modified (written) the same time instructions are being read from another memory location. Memory writing can alternatively be effected by a sub-program comprising a sequence of microinstructions, or by a write automaton comprising hard-wired logic circuits.
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申请公布号 |
US4382279(A) |
申请公布日期 |
1983.05.03 |
申请号 |
US19800207463 |
申请日期 |
1980.11.17 |
申请人 |
COMPAGNIE INTERNATIONALE POUR L'INFORMATIQUE CII-HONEYWELL BULL (SOCIETE ANONYME) |
发明人 |
UGON, MICHEL |
分类号 |
G06F15/18;G06F9/06;G06F9/24;G06F15/78;G06N3/063;G06N99/00;G11C17/00;(IPC1-7):G06F9/00 |
主分类号 |
G06F15/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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