1762 - MachXO2: How do I disable to SPI configuration interface so that an external device can use the SPI pins to talk to the FPGA fabric?<br>

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• 1763 - LatticeXP2: Can I connect the SSPIA primitive such that both the JTAG interface and the user logic in the FPGA fabric can access the SSPI Port?<quote><quote></quote></quote>

  No, it is not possible to set PERSISTENCE = ON in order to preserve the JTAG to SPI port in the configuration logic while simultaneously using the SSPIA component to access internal configuration logic from the FPGA fabric (PERSISTENCE = OFF). If ...

• 1423 - Can I access the on-chip Flash memory use the Master SPI Mode(MSPI) for MACHXO2 device?<br>

  You can not use the Master SPI Mode(MSPI) to access the on-chip Flash memory. This mode is exclusively for SRAM memory configuration. You can use the MSPI port for programming the external SPI Flash device through JTAG mode. This provides a single ...

• Radiant Programmer: What is Erase, Program, Verify Quad 1 operation used for?

  Description: Erase, Program, Verify Quad 1 enables that QE bit to '1'. In general, there are two (2) requirements/steps to enable booting from external SPI Flash through x4 (QUAD Mode) Step 1 - Convert the bitstream file into hex (Quad I/O read mode) ...

• 103 - Can the LatticeXP2 use encrypted configuration bitstreams supplied by an external SPI Master or SPI Slave?

  The LatticeXP2 provides two methods to supply non-volatile programming images into the FPGA configuration memory. The first method employs an on-chip flash memory that is read and loaded at power-up or image refresh. The second method allows an ...

• 3817 - LatticeXP2: Is the download/configuration time from Internal/External SPI Flash different while using Dual Boot Mode in LatticeXP2 device?

  While using Dual Boot Mode, the configuration time (time required for the bitstream to get configured inside the device) from Internal Flash is less. Data transfer is faster because the Internal Flash interface with SRAM is parallel, whereas it is a ...