Semiconductor device comprising CPU and peripheral circuit wherein control unit performs wait cycle control that makes peripheral circuit wait a predetermined time before responding to CPU
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United States of America Patent
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Jun 8, 2004
Grant Date -
Mar 21, 2002
app pub date -
Feb 1, 2001
filing date -
Sep 20, 2000
priority date (Note) -
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Abstract
A semiconductor device includes a CPU and many peripheral circuits that are accessed by the CPU. Each peripheral circuit includes a wait control register which changeably holds wait cycle number information indicative of the number of wait cycles for an access by the CPU to that peripheral circuit, and a wait control circuit providing wait control for the access by the CPU to that peripheral circuit based on the number of wait cycles held by the wait control register.
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