7561 - MACHXO3D: Why OSCH internal oscillator module fails to synthesize in MachXO3D devices?

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• 247 - Is an external pull up required on the MachXO SleepN pin?

  The SleepN pin on the MachXO C devices is an enable for the internal regulator. When the SleepN pin is asserted low the regulator is turned off and the device is put in a low power state. An external pull up is recommended or you can tie the pin to ...

• 3829 - In an iCE40LP-CM81 device, can an internal oscillator be used as a clock source in the RTL design?

  An internal oscillator can not be used as a clock source in the RTL design. It is only used for the device configuration.

• 5590 - Clock: How to route internal oscillator clock to the primary clock network in Radiant?

  Description: This FAQ provide the guide to router internal oscillator clock to the primary clock network in Radiant. Solution: The “USE PRIMARY" option in Radiant Device Constraint Editor can be used to force-connect non-direct access ports to a ...

• 725 - Does the MachXO device family support true LVDS buffers?<br>

  The larger two devices (LCMXO1200 & LCMXO2280) in the MachXO family support True LVDS I/O. To set up "true LVDS" on the input side, connect a 100 ohm terminating resistor across the 'true' and 'compliment' input terminals. On the output side, no ...

• 2516 - MachXO: What is the meaning of "I/O Tristate Voltage Applied" and "Dedicated Input Voltage Applied" specified in the Absolute Maximum Ratings section of MachXO data sheet?

  Solution: There are two cases where an IO pad is driven by an external source. One is the case of a dedicated input pad, and the other is a bi-directional IO pad in which its output can be tri-stated. The "Dedicated Input Voltage Applied" and "I/O ...