摘要:
Stackable circuit devices include mechanical and electrical connection elements that are optionally disengageable and disconnectable. The mechanical connection elements comprise pairs of complementary male and female plug-in engagement elements respectively arranged at opposite matching positions on top and bottom faces of each device package. The male and female plug-in engagement elements provide a mutual plug-in engagement. The electrical connection elements comprise a plurality of first and second complementary contact elements respectively arranged in opposite and matching positions on either the top or bottom face of each device package. When the circuit devices are stacked, the first contact elements are respectively configured to provide an electrical connection to a complementary matching second contact element of an adjacently plugged in circuit device. Some of the stackable circuit devices may accommodate an integrated memory die or chip and others of the stackable circuit devices may include line routing and distribution blocks.
摘要:
A memory control unit for controlling a memory module comprising a plurality of memory cells, said memory control unit comprising means for detecting failure of at least one memory cell, means for deactivating said at least one defective memory cell, means for assigning the address of said at least one defective memory cell to at least one replacement memory cell, first tracking means for tracking the remaining replacement memory cells and masking means to hide the address of a defective memory cell to prevent further usage of this address instead of assigning said address to a replacement memory cell.
摘要:
An integrated circuit includes: a terminal for outputting data, a driver for providing the data to the terminal, and a switch for selectively connecting/disconnecting the driver to the terminal. The disconnection of the driver reduces the capacitive load on the connection between the terminal and driver, thus reducing limitations on data rate from factors such as data reflections that reduce signal quality. Selective connection/disconnection allows the driver to be reconnected to the terminal only when needed.
摘要:
Method and apparatus that relate to a storage device comprising a plurality of memory cells, an interface device configured to connect the storage device to a host system and configured to transmit signals to read and write data from the host system to the memory cells via a first and second data path, and a logic unit. The logic unit is configured to read and write data from the plurality of memory cells via the second data path, and configured to perform logic operations on data stored in the plurality of memory cells. When performing read and write operations, the first data path excludes the logic unit, and the second data path includes the logic unit. Furthermore, the logic unit is communicatively coupled between the interface device and the plurality of memory cells. Additionally, a method for manufacturing the memory device is provided.
摘要:
A system including a central processing unit, a first memory channel being configured to couple the central processing unit to a first semiconductor memory unit, wherein the first memory channel is configured to be clocked with a first clock frequency, and a second memory channel being configured to couple the central processing unit to a second semiconductor memory unit, wherein the second memory channel is configured or configurable to be clocked with a second clock frequency smaller than the first clock frequency.
摘要:
The invention provides a data handover unit for transferring data from a furst clock domain to a second clock domain, comprising: a first clock unit operable to supply a first clock signal; a selector stage operable to sample an incoming data stream with respect to the first clock signal; a second clock unit operable to supply a second clock signal; a storage unit coupled with the selector stage, wherein the storage unit has a first plurality of storage elements each of which is operable to store one bit of data of the sampled data stream, an output unit for parallelly reading out a fram of data from a second plurality of storage elements included in the first plurality of storage elements with respect to the second clock signal, wherein the selector stage is further operable to successively write the data bits of the sampled data stream into the first plurality of storage elements and to store the respective data bits of the sampled data stream in the respective storage elements until they were read out by the output unit.
摘要:
A clock and data recovery unit for recovering a received serial data bit stream having: phase adjustment means for adjustment of a sampling time in the center of a unit interval of the received data bit stream, wherein the phase adjustment means comprises means for generating equidistant reference phase signals, a phase interpolation unit, an oversampling unit, a serial-to-parallel-conversion unit, a binary phase detection unit, and a loop filter; and data recognition means for recovery of the received data stream which includes a number of parallel data recognition FIR-Filters, wherein each data recognition FIR-Filter comprises a weighting unit, a summing unit, and a comparator unit.
摘要:
A data receiver has a sampling unit connected to a data signal input and configured to sample a data signal amplitude and amplify the sampled data signal amplitude to a predetermined value, a sampling clock generator unit connected to the sampling unit and configured to predetermine a sampling clock for the sampling unit, an evaluation unit connected to the sampling unit and configured to determine the time duration required by the sampling unit for amplifying the sampled data signal amplitude to the predetermined value and evaluate the time duration determined, and a control unit connected to the evaluation unit and the sampling clock generator and configured to define the sampling clock on the basis of the evaluation of the time duration determined by the evaluation unit.
摘要:
A method and apparatus for fast digital filtering that requires only filter stages of first and second order. A desired rational filter transfer function is represented as a sum of first and second order intermediate transfer functions. A time dependent input signal is first fed in parallel into a plurality of first and second order intermediate recursive filter stages. Then, the outputs of the intermediate filter stages are summed up to an output filter signal that corresponds to the desired rational filter transfer function. The method and apparatus reduces the amount of calculational effort to the order of O(N), where N denotes the number of sampling points in the time domain, because the digital filtering is based on a discrete recursive convolution in the time domain.
摘要:
One embodiment of the present invention provides a memory device comprising an array of memory cells, a control logic for writing data to and reading data from the array of memory cells, the control logic comprising a first interface, an input/output section for exchanging data, address and control signals with a circuit external to the memory device, the input/output section comprising a second interface for sending signals to and receiving signals from the first interface of the control logic, and a synchronizing facility connected to the first interface of the control logic and to the second interface of the input/output section for synchronizing the first interface of the control logic and the second interface of the input/output section.