Programmable logic device with cascading DSP slices
    71.
    发明申请
    Programmable logic device with cascading DSP slices 有权
    具有级联DSP片的可编程逻辑器件

    公开(公告)号:US20050144212A1

    公开(公告)日:2005-06-30

    申请号:US11019783

    申请日:2004-12-21

    摘要: Described is a programmable logic device (PLD) with columns of DSP slices that can be cascaded to create DSP circuits of varying size and complexity. Each DSP slice includes a plurality of operand input ports and a slice output port, all of which are programmably connected to general routing and logic resources. The operand ports receive operands for processing, and a slice output port conveys processed results. Each slice additionally includes a feedback port connected to the respective slice output port, to support accumulate functions in this embodiment, and a cascade input port connected to the output port of an upstream slice to support cascading.

    摘要翻译: 描述了可编程逻辑器件(PLD),其具有可以级联的DSP片段,以创建不同大小和复杂度的DSP电路。 每个DSP片包括多个操作数输入端口和片输出端口,所有这些端口都可编程地连接到通用路由和逻辑资源。 操作数端口接收处理的操作数,切片输出端口传送处理结果。 每个切片还包括连接到相应切片输出端口的反馈端口,以支持在该实施例中的累积功能,以及连接到上游切片的输出端口以支持级联的级联输入端口。