A logic network for an integrated circuit is synthesized as follows. The logic network is mapped to a network of lookup tables (LUTs). The LUT mapping is based at least in part on estimated areas of the LUTs. The individual LUTs in the network are improved (LUT optimization), for example using various Boolean optimization techniques. The network of improved LUTs is then reduced to a gate-level netlist of standard cells.

An integrated circuit includes first circuitry and sleep transistor circuitry. The first circuitry receives input signals and processes the input signals. The first circuitry also retains data in a sleep state that has low leakage. The sleep transistor circuitry is coupled to the first circuitry and receives a sleep signal that has a negative voltage. The sleep circuitry reduces power consumption of the first circuitry in the sleep state to have low leakage based on the sleep signal while retaining the data in the first circuitry.

A programmable device structure based on a mixed function storage unit includes a storage unit SRAM and a mixed function unit, wherein the storage unit comprises n register units and at least one selection control bit, wherein n=2{circumflex over ( )}x, and x is natural number; the register units are selected according to the selection control bit; and when the selection control bit selects the mixed function unit to serve as a lookup table, a logic function is achieved; or when the selection control bit selects the mixed function unit to serve as a multiplexer, a routing function is achieved. By multiplexing the register units, the programmable device structure achieves a routing function of a traditional FPGA and also provides a logic function, and the waste of resources is greatly reduced.

Various techniques are provided to implement fast boot for programmable logic devices (PLDs). In one example, a method includes receiving configuration data associated with a PLD. The PLD includes an array of configuration memory cells including logic block memory cells and input/output (I/O) block memory cells associated with the PLD's logic fabric and I/O fabric, respectively. The method further includes programming a subset of the I/O block memory cells with the configuration data, and providing a wakeup signal to activate functionality associated with a portion of the I/O fabric. The method further includes programming remaining configuration memory cells of the array with the configuration data, where the remaining configuration memory cells include at least a subset of the logic block memory cells. The method further includes providing a wakeup signal to activate functionality associated with at least a portion of the logic fabric. Related systems and devices are provided.

An electronic system and an operation method thereof are disclosed. A method of an electronic system including a field programmable gate array (FPGA) includes: synthesizing, by processing circuitry, code of a high level language into code of a hardware description language; designing, by the processing circuitry, a circuit of an intellectual property (IP) block included in the field programmable gate array according to the code of the hardware description language; and generating, by the processing circuitry, a database containing reference assembly code corresponding to the code of the high level language and information about a circuit configuration of the intellectual property block.

An integrated circuit may include integrated memory that is formed from a chain of memory blocks. Each memory block may have configurable input and output circuits. The configurable input and output circuits may be interposed between memory circuitry such as a memory array from circuitry external to the memory circuitry. The configurable input and output circuits may have upstream and downstream memory block connection ports. In such a way, configurable input and output circuits in a first memory block may pass control and address signals and data to configurable input and output circuits in a second memory block. By using the configurable input and output circuits, the integrated memory in the integrated circuit may operate to accommodate large bandwidth flows without using the general routing fabric of the integrated circuit.

A method for designing an FPGA may include determining blocks required for each of a plurality of applications; determining a size of the FPGA accommodating the determined blocks for each of the plurality of applications; and laying out the determined blocks for each of the plurality of applications in a block array of the FPGA.

A method for operating a system level interconnect in an integrated circuit (IC) is provided in an example embodiment. The method comprises: writing, by a microcontroller in the IC, a first configuration value into a configuration register, where the first configuration value programs the system level interconnect to couple a first peripheral to a second peripheral; monitoring the IC to determine an operational state of the IC; and in response to determining a change in the operational state of the IC, writing by the microcontroller a second configuration value into the configuration register to dynamically change interconnections in the system level interconnect between the first peripheral and the second peripheral.

A switch circuit includes: a plurality of four-terminal switches having variable-resistance elements and a rectifier element serially connected; an input line and an output line, at least one of which is multiply present, to which are connected terminals of two switches other than terminals at which the variable-resistance terminals are serially connected; and a control line to which are connected the terminals of the two switches other than the terminals at which the rectifier elements are serially connected, the control line, together with the input line and the output line, turning on and off in turn, by pair, the pair of variable-resistance elements connected to the input line and the pair of variable-resistance elements connected to the output line, among the variable-resistance elements of the plurality of four-terminal switches of the four-terminal switches connected to the input line or the output line.

An integrated circuit (IC) can be configured to provide a managed power distribution to circuits within a plurality of regions of the IC. Each region of the plurality of regions can include a corresponding set of circuits that are electrically connected to a corresponding virtual power island (VPI) within said each region. A global power distribution structure within the IC can be configured to be electrically interconnected to an off-chip voltage supply. The IC can also include a plurality of sets of vertical interconnects (VIs), each set of VIs electrically interconnected to a VPI within a corresponding region. Each set of VIs can also be connected to the global power distribution structure, and can be used to provide a specifically managed voltage through a VPI to a set of circuits within a corresponding region of the IC.