Pulse or digital communications – Repeaters – Testing
Patent
1991-09-09
1995-10-31
Bowler, Alyssa H.
Pulse or digital communications
Repeaters
Testing
375800, 375375, 37518304, 3642328, 364266, 364DIG1, G06F 1100
Patent
active
054637600
ABSTRACT:
An in-circuit emulator comprising a microprocessor having an input terminal for selecting whether or not the data obtained by accessing an external address should be registered in the cache memory, a register for storing an address for discontinuing the execution of the microprocessor, and a comparator for comparing an address outputted from the microprocessor with the address stored in the register. When the result of comparison is indicative of coincidence, the comparator outputs a coincidence output signal to the above mentioned terminal of the microprocessor, so that the data is inhibited from being registered into the cache memory. Therefore, an external access is performed for the address discontinuing the execution, and accordingly, a break address can be detected by a device external to the microprocessor.
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patent: 4811345 (1989-03-01), Johnson
patent: 4924382 (1990-05-01), Shouda
patent: 4998197 (1991-03-01), Kurakazu et al.
patent: 5053949 (1991-10-01), Allison et al.
patent: 5132971 (1992-07-01), Oguma et al.
Bowler Alyssa H.
NEC Corporation
Shah Alpesh M.
LandOfFree
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