Microcontroller with configurable instruction set
There are no applications related to the present application. An embeddable microcontroller is provided. The microcontroller has program memory for storing instructions. An instruction decoder feteches instructions, decodes them, and forwards them to an enabler. The enabler checks a status bit or co...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
30.07.2002
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Online Access | Get full text |
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Abstract | There are no applications related to the present application.
An embeddable microcontroller is provided. The microcontroller has program memory for storing instructions. An instruction decoder feteches instructions, decodes them, and forwards them to an enabler. The enabler checks a status bit or consults a pre-defined lookup table to determine whether the instruction at hand should be executed. If the status bit is set to ENABLE, or the instruction appears on a list of enabled instructions, the decoded instruction is forwarded to the central processing unit for execution. Otherwise, if the status bit is set to DISABLE, or the decoded instruction does not appear on the pre-defined list of enabled instructions, then the instruction is not forwarded to the central processing unit, effectively disabling the instruction. |
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AbstractList | There are no applications related to the present application.
An embeddable microcontroller is provided. The microcontroller has program memory for storing instructions. An instruction decoder feteches instructions, decodes them, and forwards them to an enabler. The enabler checks a status bit or consults a pre-defined lookup table to determine whether the instruction at hand should be executed. If the status bit is set to ENABLE, or the instruction appears on a list of enabled instructions, the decoded instruction is forwarded to the central processing unit for execution. Otherwise, if the status bit is set to DISABLE, or the decoded instruction does not appear on the pre-defined list of enabled instructions, then the instruction is not forwarded to the central processing unit, effectively disabling the instruction. |
Author | Drake, Rodney Jay Richardson, David Alan |
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References | Sipple (4167778) 19790900 Potter (5742794) 19980400 Narayan (5859991) 19990100 Shelton (6035380) 20000300 Gabzdyl (5964861) 19991000 (2 136 998) 19840900 Mahalingaiah (6141740) 20001000 Van Praet (5918035) 19990600 Davis (6002876) 19991200 Miller (6081884) 20000600 "Opcode Compare Facility"; Research Disclosure, GB, Industrial Opportunities, LTD., Havant, No. 315, p. 577, XP000134174, ISSN: 0374-4353, Jul. 1, 1990. Pickett (6076156) 20000600 Black et al. (5619408) 19970400 Bronstein (4386773) 19830600 (0 726 516) 19960800 Combs (5802544) 19980900 |
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Snippet | There are no applications related to the present application.
An embeddable microcontroller is provided. The microcontroller has program memory for storing... |
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