Lattice Semiconductor Corporation

Gowin Semiconductor Corporation

Other

San-Ta Kow

Howard H Tang

Ann Wu

Roger Spinti

Ju Shen

Jinghui Zhu

Diwakar Chopperla

Satwant Singh

Chan-Chi Jason Cheng

Tou Nou Thao

Chienkuang Chen

Ning Song

Benny Ma

Tun Jun Gao

Thomas Tsui

The present application discloses a system level integrated circuit chip, comprising a fixed logic module and a Programmable Logic Module; the fixed logic module comprising a CPU module, a non-volatile memory module, a high speed data transmission module, an analogue-to-digital and/or digital-to-analogue conversion module; the Programmable Logic Module comprising a user-defined field programmable gate array and a programmable control module; the CPU module is interconnected with the user-defined field programmable gate array and the programmable control module; the non-volatile memory is interconnected with the user-defined field programmable gate array and the programmable control module; the analogue-to-digital and/or digital-to-analogue conversion module are connected with the user-defined field programmable gate array; and the high speed data transmission module is interconnected with the user-defined field programmable gate array. The present application solves the problem of the combination of a variety of different devices and the integration of processing capabilities with different applications.

System level integrated circuit chip

A secrecy system and a decryption method of on-chip data stream of nonvolatile FPGA are provided in the present invention. The nonvolatile memory module of the system is configured to only allow the full erase operation. After the full erase operation is finished, the nonvolatile memory module gets into the initial state. Only the operation to the nonvolatile memory module under the initial state is effective, and thereby the encryption region unit is arranged in the nonvolatile memory module. Only the decryption data written into the encryption region unit under the initial state can make the nonvolatile memory module to be readable, so that the decryption of the system is finished, which greatly improves the secrecy precision.

Secrecy system and decryption method of on-chip data stream of nonvolatile FPGA

The present invention discloses a programmable logic device with on-chip user non-volatile memory, comprising: a programmable logic array, which is a user programmable logic array and comprises a SRAM array and a logic block array with an interface; the SRAM array is used to store configuration data to control the logic block array in real time, therefore, the logic block can be formed to perform the function a user desires; a non-volatile memory block, comprising one or more segments storing configuration data and one or more segments storing user data which is used during FPGA's normal operation after configuration; the non-volatile memory block has only one interface, and the non-volatile memory block connects to a programming controller through the interface; a programming controller, which can randomly access the non-volatile memory through a data bus, an address bus, and corresponding control signals.

Programmable logic device with on-chip user non-volatile memory

The present disclosure provides a data processing method and a device for a nonvolatile memory and a storage medium. The data processing method comprises: performing a full erase operation on the nonvolatile memory if a full erase operation command is received, such that the nonvolatile memory enters an initial state, wherein the initial state refers to a state in which all operations performed on the nonvolatile memory are valid; in the initial state, storing a data if the data is written in the memory is detected, wherein the data comprises a flag information; detecting the flag information if a data readout command triggered by a user is received; and identifying that the nonvolatile memory is in a default state and prohibiting the user from reading the data stored in the nonvolatile memory if the flag information is detected as an unreadable flag information.

Data processing method and device for nonvolatile memory and storage medium

In one embodiment, a method of verifying a programming operation of a programmable logic device includes storing in non-volatile memory within the programmable logic device configuration data and a pre-calculated code value based on the configuration data. The method further includes transferring the configuration data from non-volatile memory to configuration memory within the programmable logic device; calculating a code value based on the configuration data transferred from the non-volatile memory to the configuration memory; and comparing the calculated code value to the pre-calculated code value.

Programmable logic device programming verification systems and methods

In one embodiment, a method of converting an uncompressed bitstream into a compressed bitstream for a programmable logic device (PLD) is disclosed. The method includes embedding a first data frame from the uncompressed bitstream into the compressed bitstream, wherein the first data frame comprises a first data set; embedding a first instruction into the compressed bitstream to load the first data frame into a first row of configuration memory of the PLD at an address associated with the first data frame; identifying a second data frame in the uncompressed bitstream, wherein the second data frame comprises the first data set; and embedding a second instruction into the compressed bitstream to load the first data frame into a second row of the configuration memory at an address associated with the second data frame.

Compression and decompression of configuration data using repeated data frames

In one embodiment of the invention, a programmable logic device includes configuration memory and a controller. The controller can read a first bitstream from a first memory block of non-volatile memory and detect whether the first bitstream contains a valid preamble as the first bitstream is read from the non-volatile memory and before configuration data in the first bitstream is programmed into the volatile configuration memory. If a valid preamble is detected in the first bitstream, the controller programs the configuration memory with configuration data in the first bitstream. If a valid preamble is not detected in the first bitstream, the controller reads a second bitstream from a second memory block of the non-volatile memory.

Programmable logic device and methods for providing multi-boot configuration data support

A method of recovering from a soft error within configuration data stored in a configured programmable logic device. The method includes repeatedly processing the configuration data stored within configuration memory of the device using an error-detection algorithm to generate a checksum. The generated checksum is compared with a previously generated checksum to detect if a soft error exists in the configuration data. If a soft error is detected, the programmable logic device initiates a reconfiguration of the configuration memory. The configuration memory is then reconfigured with the configuration data while preventing the programmable logic device from responding to the reconfiguration as though the reconfiguration was an initial configuration of the device. An embodiment of a programmable logic device designed for practicing the method is also disclosed.

Auto recovery from volatile soft error upsets (SEUs)

Various techniques are provided to compress and decompress configuration data for use with programmable logic devices (PLDs). In one example, a method includes embedding a first data frame comprising a data set from an uncompressed bitstream into a compressed bitstream. The method also includes embedding a first instruction to instruct a PLD to load the first data frame into a data shift register, embedding a second instruction to instruct the PLD to load a first address associated with the first data frame into an address shift register, and embedding a third instruction to instruct the PLD to load the first data frame from the data shift register into a first row of a configuration memory corresponding to the first address. The method further includes identifying a second data frame comprising the data set in the uncompressed bitstream, and embedding fourth and fifth instructions in place of the second data frame.

Systems and methods provide register data retention techniques for a programmable logic device in accordance with one or more embodiments of the present invention. For example, in one embodiment, a programmable logic device includes a plurality of logic blocks adapted to generate user data during operation of the programmable logic device; a plurality of registers adapted to store the user data during a reprogramming operation of the programmable logic device; and configurable routing resources adapted to provide a programmed data path between the logic blocks and the registers.

Register data retention systems and methods during reprogramming of programmable logic devices

In embodiment of the invention, a programmable logic device includes configuration memory adapted to be programmed with configuration data and a plurality of programmable fuses adapted to store a security key for use with configuration data. The security key includes a plurality of data bit values, wherein each data bit value of the security key is associated with a subset of a least three fuses each storing a bit. Each of a plurality of decoders is adapted to retrieve a data bit value of the security key by providing the bit value stored by a majority of the fuses of the associated subset as the data bit value of the security key.

Method and devices for storing a security key using programmable fuses

In one embodiment, a programmable logic device (PLD) includes a slave port and a master port. The slave port can receive a configuration data bitstream and a slave clock signal from a master port of a first external device. The master port can provide the configuration data bitstream and a master clock signal from the PLD to a slave port of a second external device. An interface block in the PLD can pass the configuration data bitstream from the slave port through the PLD to the master port. In another embodiment, a PLD includes a slave serial peripheral interface (SPI) port and configuration memory. The slave SPI port can receive a configuration data bitstream and a slave clock signal from a master SPI port of an external device. The configuration memory stores the received bitstream for configuring the PLD.

Programmable logic device providing serial peripheral interfaces

In accordance with an embodiment of the present invention, a programmable logic device includes configuration memory to store configuration data to configure the programmable logic device, and a non-volatile memory to store configuration data for transfer to the configuration memory to configure the programmable logic device. The non-volatile memory also stores a first code value based on the configuration data stored in the non-volatile memory. A code block calculates a second code value based on the configuration data transferred to the configuration memory. A comparator compares the first code value to the second code value to verify that the configuration data was not corrupted during the transfer from the non-volatile memory to the configuration memory.

Systems and methods are disclosed herein to provide improved security key techniques for programmable logic devices. For example, in accordance with an embodiment of the present invention, a method of providing data security for a programmable logic device (PLD) includes programming a plurality of programmable fuses that stores a security key comprising a plurality of data bit values, wherein each data bit value is associated with a respective subset of at least three of the fuses. The security key is retrieved from the fuses using the data bit values stored by each subset of the fuses. An encrypted configuration data bitstream is decrypted using the retrieved security key to obtain an original configuration data bitstream to configure the PLD.

Methods and systems for storing a security key using programmable fuses

Improved reconfiguration techniques are provided for programmable logic devices (PLDs). For example, in accordance with an embodiment of the present invention, a programmable logic device includes logic blocks, input/output blocks and corresponding input/output pins, and configuration memory. The PLD also includes registers adapted to capture output signal values of the input/output pins before a reconfiguration of the programmable logic device and to provide the captured values on the input/output pins during the reconfiguration of the PLD.

Growing community of inventors

San Jose, CA, United States of America

San-Ta Kow