Abstract:
The systems and methods provided herein identify a command acquisition mode from a plurality of command acquisition modes of a command interface of a memory device. A state of a chip select signal (CS) is identified. When the CS transitions to low from high, a first portion of a command address is captured in a first clock cycle after the CS transitions. When the command acquisition mode is in a first mode, a second portion of the command address is captured in a second clock cycle immediately after the first clock cycle. Otherwise, when the command acquisition mode is in a second mode, the second portion of the command address is captured in a third clock cycle immediately following the second clock signal. An internal command is fired, using the first portion of the command address and the second portion of the command address.
Abstract:
Disclosed are methods for reading data from a storage buffer. One such method may include retrieving a first set of data during a first period of time. The method may also include delaying data retrieval during a second period of time after the first period of time. The method may include outputting at least a portion of the first set of data during the first period of time and the second period of time. The first period of time is substantially similar to the second period of time.
Abstract:
Apparatuses and methods are provided that include a multiplexer configured to generate a plurality of sums of a plurality of data words, wherein the plurality of data words is received by the multiplexer and identified as unmasked based on a data mask. The multiplexer is also configured to determine whether each sum of the plurality of sums indicates that a corresponding data word of the plurality of data words is masked. The multiplexer is further configured to shift the plurality of data words to remove the corresponding masked data word from the plurality of data words. The multiplexer is also configured to output only the data words identified as unmasked based on the data mask.
Abstract:
Disclosed are apparatuses and methods for writing data to a memory array of a buffer. One such apparatus may include a multiplexer that receives data words and a data mask. The multiplexer may change the order of the data words to group masked data words together and to group unmasked data words together. The multiplexer may also change the order of the data mask to group masking bits together and to group unmasking bits together. The apparatus may use the data words with the changed order and the data mask with the changed order to write data to the memory array.
Abstract:
Apparatus and methods are disclosed, such as those involving array/port consolidation and/or swapping. One such apparatus includes a plurality of port pads including a plurality of contacts; a plurality of memory arrays; and a plurality of master data lines. Each of the master data lines extends in a space between one of the port pads and a respective one of the memory arrays. Each of the master data lines is electrically connectable to the contacts of a respective one of the port pads. The apparatus further includes a plurality of local data lines, each of which extends over a respective one of the memory arrays. Each of the local data lines is electrically connectable to a respective one of the master data lines. At least one of the local data lines extends over at least two of the memory arrays. This configuration allows memory array consolidation and/or swapping without increasing die space for additional routing and adversely affecting performance of the apparatus.