Emulation system for emulating CPU core, CPU core with provision for emulation and ASIC having the CPU core
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United States of America Patent
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Jan 14, 1997
Grant Date -
N/A
app pub date -
Feb 23, 1994
filing date -
Feb 25, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
An IC is provided with a CPU core selected from a plurality of CPU cores, each of which has a specific function. Each CPU core has a system-bus terminal and a common emulator connecting-exclusive terminal. The IC is also provided with a predetermined function device connected to a system bus of the selected CPU core. An emulation bus connects an emulator to the selected CPU core via the common emulator connecting-exclusive terminal. An emulator performs emulation on the selected CPU core which is connected via the emulation bus when the selected CPU core is in a monitor mode. The number of terminal elements and the function associated with each terminal element of the common emulator connecting-exclusive terminal are identical among the common emulator connecting-exclusive terminals.
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