公开(公告)号：US08938577B2

公开(公告)日：2015-01-20

申请号：US14288153

申请日：2014-05-27

Applicant: STMicroelectronics International N.V.

Inventor： Sandeep Rohilla

IPC: G06F12/00 ,  G06F13/28

CPC classification number: G06F13/287 ,  G11C7/10 ,  G11C7/103 ,  G11C7/1036 ,  G11C7/1087

Abstract: In managing incoming bus traffic storage for store cell memory (SCM) in a sequential-write, random-read system, a priority encoder system can be used to find a next empty cell in the sequential-write step. Each cell in the SCM has a bit that indicates whether the cell is full or empty. The priority encoder encodes the next empty cell using these bits and the current write pointer. The priority encoder can also find next group of empty cells by being coupled to AND operators that are coupled to each group of cells. Further, a cell locator selector selects a next empty cell location among priority encoders for cell groups of various sizes according to an opcode by appending ‘0’s to cell locations outputs from priority encoders that are smaller than the size of the SCM.

Abstract translation: 在顺序写入随机读取系统中管理存储单元存储器（SCM）的输入总线流量存储器时，优先级编码器系统可用于在顺序写入步骤中找到下一个空单元。 SCM中的每个单元格都有一个位，表示单元格是满还是空。 优先编码器使用这些位和当前写指针对下一个空单元进行编码。 优先编码器还可以通过耦合到耦合到每组单元的AND运算符来找到下一组空单元。 此外，单元定位器选择器根据操作码，通过将小于等于小于SCM大小的优先编码器的单元位置输出相加0来选择各种尺寸的单元组的优先编码器中的下一个空单元位置。