摘要:
A routing structure in a PLD is implemented in a staggered fashion. Routing lines that would otherwise be “partial” and dangling at a routing architecture boundary are driven, providing additional flexibility for routing signals to the PLD core from the boundaries.
摘要:
A routing structure in a PLD is implemented in a staggered fashion. Routing lines that would otherwise be “partial” and dangling at a routing architecture boundary are driven, providing additional flexibility for routing signals to the PLD core from the boundaries.
摘要:
In one aspect, flexible routing resources provided are comprising an arrangement of staggered line segments on a periphery of an electronic device. In another aspect, I/O bus lines a re coupled to receive signals from and to provide signals to other bus lines, core routing, and I/O circuitry, thus facilitating the use of the I/O bus for a variety of routes that may include I/O-to-core, core-to-I/O and core-to-core routes. In another aspect, a length of I/O bus lines is optimized for speed over long signal routes with high fanout. In another aspect, the loading effects of high fanout are minimized by using a plurality of tapping buffers to couple lines to both core routing and to I/O circuitry. In another aspect, a spiraling technique is provided that allows a continuous bus having line segments of consistent length whether or not the number of I/O blocks is an integral multiple of the selected logical length for line segments.
摘要:
In accordance with one aspect of the invention, a hole is formed within an LE array of a PLD by interrupting the LE array base signal routing architecture such that a hole is left for IP function block to be incorporated. An interface region is provided for interfacing the remaining LE array base signal routing architecture to the IP function block.
摘要:
In accordance with one aspect of the invention, a hole is formed within an LE array of a PLD by interrupting the LE array base signal routing architecture such that a hole is left for IP function block to be incorporated. An interface region is provided for interfacing the remaining LE array base signal routing architecture to the IP function block.
摘要:
In accordance with one aspect of the invention, a hole is formed within an LE array of a PLD by interrupting the LE array base signal routing architecture such that a hole is left for IP function block to be incorporated. An interface region is provided for interfacing the remaining LE array base signal routing architecture to the IP function block.
摘要:
In accordance with one aspect of the invention, a hole is formed within an LE array of a PLD by interrupting the LE array base signal routing architecture such that a hole is left for IP function block to be incorporated. An interface region is provided for interfacing the remaining LE array base signal routing architecture to the IP function block.
摘要:
In accordance with one aspect of the invention, a hole is formed within an LE array of a PLD by interrupting the LE array base signal routing architecture such that a hole is left for IP function block to be incorporated. An interface region is provided for interfacing the remaining LE array base signal routing architecture to the IP function block.
摘要:
In accordance with one aspect of the invention, a hole is formed within an LE array of a PLD by interrupting the LE array base signal routing architecture such that a hole is left for IP function block to be incorporated. An interface region is provided for interfacing the remaining LE array base signal routing architecture to the IP function block.
摘要:
In accordance with one aspect of the invention, a hole is formed within an LE array of a PLD by interrupting the LE array base signal routing architecture such that a hole is left for IP function block to be incorporated. An interface region is provided for interfacing the remaining LE array base signal routing architecture to the IP function block.