摘要:
The invention relates to a semi-conductor component, and a process for the in- and/or output of test data and/or semi-conductor component operating control data into or from a semi-conductor component, whereby the semi-conductor component comprises one or more useful data memory cells, and/or one or more test data and/or semi-conductor component operating control data registers for storing test data and/or semi-conductor component operating control data, and whereby the process comprises the steps of applying a control signal to the semi-conductor component, whereby the semi-conductor component is switched from a first to a second operating mode; and applying an address signal to the semi-conductor component, whereby one or more of the test data and/or semi-conductor component operating control data registers of the semi-conductor component is addressed by the address signal in the second operating mode, and one or more of the useful data memory cells in the first operating mode.
摘要:
The invention relates to a semi-conductor component, and a process for the in- and/or output of test data and/or semi-conductor component operating control data into or from a semi-conductor component, whereby the semi-conductor component comprises one or more useful data memory cells, and/or one or more test data and/or semi-conductor component operating control data registers for storing test data and/or semi-conductor component operating control data, and whereby the process comprises the steps of applying a control signal to the semi-conductor component, whereby the semi-conductor component is switched from a first to a second operating mode; and applying an address signal to the semi-conductor component, whereby one or more of the test data and/or semi-conductor component operating control data registers of the semi-conductor component is addressed by the address signal in the second operating mode, and one or more of the useful data memory cells in the first operating mode.
摘要:
An integrated semiconductor memory device includes a control circuit with a mode register to store operating parameters, as well as further registers to store further operating parameters. An operating parameter is selectively written to or read from one of the registers for storage of an operating parameter as a function of a first or second state of a configuration signal that is applied to an address connection. Any subsequent write and read access to one of the registers for storage of an operating parameter takes place analogously to a write and read access to a memory cell in a memory cell array. The integrated semiconductor memory device is thus operated to allow writing and reading of operating parameters using a standard interface and a standard protocol for inputting and outputting data to and from the memory cell array.
摘要:
An integrated semiconductor memory device includes a control circuit with a mode register to store operating parameters, as well as further registers to store further operating parameters. An operating parameter is selectively written to or read from one of the registers for storage of an operating parameter as a function of a first or second state of a configuration signal that is applied to an address connection. Any subsequent write and read access to one of the registers for storage of an operating parameter takes place analogously to a write and read access to a memory cell in a memory cell array. The integrated semiconductor memory device is thus operated to allow writing and reading of operating parameters using a standard interface and a standard protocol for inputting and outputting data to and from the memory cell array.
摘要:
A nonvolatile memory cell (1) can be integrated in space-saving fashion into a semiconductor circuit (10) intended for volatile storage with the aid of volatile memory cells (2). The memory cell (1) has a programmable component (3) having an electrical resistance that can be altered by reprogramming, and also first (8) and second switching elements (9), which switch a first current path (J1) or a second current path (J2) in conducting fashion upon activation of optionally a first (11) or a second word line (12). At least one of the two current paths leads via the programmable component (3). Potentials of two bit lines (21, 22) to which the memory cell (1) according to the invention is connected can be altered as a result of the first or the second current path (J1, J2) being activated temporarily. The memory cell (1) permanently stores an item of digital information and can be driven by word lines (11, 12) and bit lines (21, 22) such as are conventionally used in volatile semiconductor memories (10). The invention opens up the possibility of integrating volatile and nonvolatile memory cells into a common memory cell array.
摘要:
An integrated semiconductor memory includes a memory cell array having memory cells for storing a datum having a first and a second data value. An input datum present at a data terminal is stored multiply in the memory cells of the memory cell array. In order to read out the input datum, the multiply stored input data are fed to an evaluation circuit. The evaluation circuit generates, on the output side, an output datum having the data value that was stored more frequently in the memory cells used for multiple storage of the input datum than other data values. The integrated semiconductor memory thus makes it possible to reduce transfer errors when reading data into the memory cell array or reading data out of the memory cell array.
摘要:
An integrated memory contains an addressing unit for addressing memory cells for a memory access on the basis of received addressing signals. An addressing calculation logic unit is connected to the addressing unit. The latter can be activated by a test mode signal for a test operation of the memory. The addressing calculation logic unit receives command signals and address signals for the test operation, calculates therefrom the addressing signals for the memory access and feeds the latter into the addressing unit. After an initialization with the loading of initial parameters, the command signals and address signals for the test operation are applied to the addressing calculation logic unit and read/write operations are carried out by an access controller. An integrated memory with implemented BIST hardware, in the case of which a comparatively high functionality and flexibility during the memory test, are nevertheless made possible.
摘要:
An integrated semiconductor memory (1) has a multiplicity of memory cells (Z) and first lines (10) and second lines (20) that can be used to actuate the memory cells (Z). The path of each of the first lines (10) contains a respective device (5) that permits actuation of memory cells exclusively in the region of first subsections (I) of the first lines (10). The devices (5) can be set such that they bring about only partial decoupling of the second subsections (II) of the first lines (10) from the latter s first subsections (I), with memory cells either in the region of the first subsections (I) only or in the region of both subsections (I, II) being able to be actuated, depending on the choice of a relatively short or a relatively long access time to the memory cells. This allows subregions of the semiconductor memory to be used for power-saving and faster memory operation.
摘要:
A semiconductor memory and a method for operating the semiconductor memory store information items at least in triplicate at memory addresses in a plurality of memory areas, preferably memory banks, and read the information items therefrom. A checking unit contains synchronization circuits compares the data values that are read and, if the information items that are read differ, can ascertain and possibly immediately correct storage errors. The method of operating the memory enables quasi-random access to memory cells using a permutation circuit. In a test mode for the semiconductor memory, an error log circuit can output error log data instead of or in addition to data values that are read.
摘要:
A memory arrangement in a computer system can have at least one memory module with semiconductor components, which are arranged on the memory module, can be operated in parallel and are additionally connected to one another via a serial line. The memory arrangement can have an interface bus for driving the semiconductor components on a module-specific basis, and an interface, which is driven by a memory controller assigned to the memory module via the interface bus and accesses the semiconductor components via the serial line. During normal operation, it is possible to test and adjust the semiconductor components in proximity to the application and on a chip-specific basis via the interface.