摘要:
A voltage regulator bypass circuit to control bypass of a voltage regulator of an integrated circuit device, the voltage regulator bypass circuit including a first voltage detector, a second voltage detector, and circuit. The first voltage detector to detect that a core circuitry voltage level is above a first threshold and to assert a first detect signal at an output in response to the detection. The second voltage detector to detect that an unregulated supply voltage is above a second threshold and to assert a second detect signal at an output in response to the detection. The circuit having a first input coupled to the output of the first voltage detector and a second input coupled to the output of the second voltage detector, the circuit to bypass the voltage regulator in response the output of the latch being cleared.
摘要:
A system for correcting errors in read-only memory devices by means of memory patches, wherein patch data is used as read data in the place of erroneous data stored at a given location in the memory. The system includes a processing core, such as an ARM processor, adapted to perform opcode accesses as well as data accesses to memory addresses being patched. The processing core is configured for providing different patch-data for correcting errors depending on whether it is performing a code access or a data access to an address being patched.
摘要:
A voltage regulator bypass circuit to control bypass of a voltage regulator of an integrated circuit device, the voltage regulator bypass circuit including a first voltage detector, a second voltage detector, and circuit. The first voltage detector to detect that a core circuitry voltage level is above a first threshold and to assert a first detect signal at an output in response to the detection. The second voltage detector to detect that an unregulated supply voltage is above a second threshold and to assert a second detect signal at an output in response to the detection. The circuit having a first input coupled to the output of the first voltage detector and a second input coupled to the output of the second voltage detector, the circuit to bypass the voltage regulator in response the output of the latch being cleared.
摘要:
A microprocessor device comprises at least one reset management module. The at least one reset management module is arranged to detect a reset event comprising a first reset level, determine if at least one reset condition has been met upon detection of the reset event comprising the first reset level, and cause a reset of a second reset level upon determining that the at least one reset condition has been met.
摘要:
A computer system having a plurality of parallel execution pipelines which may generate data for storing in a memory, data from the pipelines may be stored in a queue prior to accessing the memory and the system includes circuitry for reordering data from the different pipelines before inserting onto the queue.
摘要:
A computer system with parallel execution pipelines and a memory access controller has store address queues holding addresses for store operations, store data queues holding a plurality of data for storing in the memory and load address storage holding addresses for load operations, said access controller including comparator circuitry to compare load addresses received by the controller with addresses in the store address queue and locate any addresses which are the same, each of said addresses including a first set of bits representing a word address together with a second set of byte enable bits and said comparator having circuitry to compare the byte enable bits of two addresses as well as said first set of bits.
摘要:
A voltage regulator bypass circuit to control bypass of a voltage regulator of an integrated circuit device, the voltage regulator bypass circuit including a first voltage detector, a second voltage detector, and circuit. The first voltage detector to detect that a core circuitry voltage level is above a first threshold and to assert a first detect signal at an output in response to the detection. The second voltage detector to detect that an unregulated supply voltage is above a second threshold and to assert a second detect signal at an output in response to the detection. The circuit having a first input coupled to the output of the first voltage detector and a second input coupled to the output of the second voltage detector, the circuit to bypass the voltage regulator in response the output of the latch being cleared.
摘要:
A memory for a computer system that includes a plurality of memory banks which provide an interleaved memory region as well as X and Y memory regions. Each memory access address includes a most significant set of bits indicating which of the interleaved, X, or Y memory regions is to be accessed. Each memory access address also includes a least significant set of bits indicating an address within the bank of the access region. At least one bit in the least significant set is a bank selector and one bit of the most significant set of bits is an X or Y region selector.
摘要:
A microprocessor device comprises at least one reset management module. The at least one reset management module is arranged to detect a reset event comprising a first reset level, determine if at least one reset condition has been met upon detection of the reset event comprising the first reset level, and cause a reset of a second reset level upon determining that the at least one reset condition has been met.
摘要:
A system for providing controlled access to a memory area storing code and data, includes a processor cooperating with the memory area. The processor is configured for marking the instructions processed with a field describing the origin of the code being executed, and enabling data access in the memory area only from authorized code. Typically, the processor includes a pipeline emulation block, and the controlled access to said memory area is implemented via the pipeline emulation block. The processor may be a RISC processor, such as an ARM processor, configured for associating with the instructions currently in the pipeline a bit marking if the instruction in question has been executed from an authorized memory area or not.