发明名称 |
External expansion bus interface circuit for connecting a micro control unit, and a digital recording and reproducing apparatus incorporating said interface circuit |
摘要 |
An external expansion bus interface circuit is provided for connecting a peripheral to a micro control unit to exchange digital information under an external expansion memory mode of the micro control unit. For this purpose, the eternal expansion bus interface circuit includes a means for storing a writing data. Address decoder and a strobe decoder are connected to the micro control unit to directly receive the writing data, an address strobe, and a write strobe. Then the address decoder and strobe decoder produce a write enable signal for enabling the memory to store the data at address designated thereby.
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申请公布号 |
US5892982(A) |
申请公布日期 |
1999.04.06 |
申请号 |
US19960757280 |
申请日期 |
1996.11.27 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
MITSUDA, MAKOTO;NAKAMURA, AKIHIKO;TAMAI, KATSUYUKI;OKABE, MASAO;MIYOSHI, TSUTOMU;SATO, MASAFUMI;SOGA, JUNJI |
分类号 |
G06F3/06;G11B20/10;(IPC1-7):G06F15/02 |
主分类号 |
G06F3/06 |
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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