6970 - MachXO2/MachXO3: Is it possible to turn save power by turning off internal oscillator of MachXO2 and MachXO3?

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• 2681 - MachXO2: What happens to the internal oscillator during background flash programming?

  The internal oscillator of the MachXO2 remains active to the user logic during transparent configuration. The clock provided by the internal oscillator to the fabric will not stop or be influenced while the oscillator is also being used internally ...

• 5154 - MachXO3: In doing background programming with transFR enabled, how does the pin re-configured from being an input to bidi and it's behavior as bidi when device is power cycled?

  The I/O electrical properties like drive strength, slew rate, open-drain, pull modes are preserved from the Initial Programming. These settings are not cleared unless the device is power-cycled or loaded with a new bitstream to overwrite these ...

• 534 - MachXO: Why can't I scan or program the MachXO device on the MachXO Mini board after I programmed my pattern into the device?

  The MachXO JTAG pins on the MACHXO Mini board share the same traces with some generic IOs of the MachXO device (as shown on page 4 and page 2 of the schematic). If the new design patterns have signals driving out of these pins, they could potentially ...

• 2205 - Why does the USB ispDOWNLOAD cable raise the VCCJ voltage when I connect it to my low power board design?

  Solution: A MachXO2 device is powered by a low voltage linear regulator that outputs the proper voltage when powered up. It is then found that when the USB ispDOWNLOAD cable is connected to the board design to program the MachXO2, that the VCCJ ...

• 1943 - MachXO: With no DONE bit, how can I use JTAG to see if the SRAM download from flash is finished?

  The way to check the MachXO configuration status through JTAG is to use the capture instruction. For the MachXO the capture instruction (which is the instruction shifting out of the instruction register) is 0x19 (if the device is blank) or 0x1D (if ...