公开(公告)号：US06684275B1

公开(公告)日：2004-01-27

申请号：US09427669

申请日：1999-10-23

Applicant: Jason A. Goldstein

Inventor： Jason A. Goldstein

IPC: G06F1312

CPC classification number: G11C7/1006 ,  G11C2207/107 ,  H03M9/00

Abstract: A serial-to-parallel/parallel-to-serial conversion engine provides a bi-directional interface between a serial TDM highway and a parallel TDM highway. The conversion engine includes a serial-to-parallel data conversion device receives a serially received data word and provides a parallel output data word. The conversion engine includes a serial data input interface that receives the serially received data word and provides a received data word. A serial-to-parallel mapping circuit receives the received data word and generates memory write control and write address signals. A memory device includes a first port responsive to the memory write control signals and write address signals for writing the received data word into the memory device, and a second port responsive to memory read control and read address signals for reading data from the memory device. Output interface circuitry generates the memory read control and read address signals, and receives output data from the memory device and reorders the bits of the parallel output data to provide the parallel data word. The conversion engine also includes a parallel-to-serial conversion device that receives a parallel received data word and provides a serial data word. The parallel-to-serial conversion device includes a memory device having a first port responsive to memory write control and write address signals, and a second port responsive to memory read control and read address signals. A parallel-to-serial mapping circuit receives the parallel received data word and generates the memory write control and write address signals to write a bit shuffled version of the parallel received data word into the memory device. A data output interface generates the memory read control and read address signals to perform reads from the memory device and receives output data from the memory device to provide the serial data word.

Abstract translation: 串行到并行/并行到串行转换引擎在串行TDM高速公路和并行TDM高速公路之间提供双向接口。 该转换引擎包括串并转数据转换装置接收串行接收的数据字并提供并行输出数据字。 转换引擎包括串行数据输入接口，其接收串行接收的数据字并提供接收到的数据字。 串行到并行映射电路接收接收到的数据字，并产生存储器写入控制和写入地址信号。 存储器件包括响应于存储器写入控制信号的第一端口和用于将接收的数据字写入存储器件的写入地址信号，以及响应于存储器读取控制的读取地址信号和用于从存储器件读取数据的读取地址信号的第二端口。 输出接口电路产生存储器读取控制和读取地址信号，并且从存储器件接收输出数据并且重新排列并行输出数据的位以提供并行数据字。 转换引擎还包括并行到串行转换设备，其接收并行接收的数据字并提供串行数据字。 并行到串行转换设备包括具有响应于存储器写控制和写地址信号的第一端口的存储器件，以及响应于存储器读控制和读地址信号的第二端口。 并行到串行映射电路接收并行接收数据字，并产生存储器写入控制和写入地址信号，以将并行接收数据字的位混洗版本写入存储器件。 数据输出接口产生存储器读取控制和读取地址信号以执行从存储器件的读取并从存储器件接收输出数据以提供串行数据字。