5572 - What is the ECP5 IOs state during Power ON and during Before POR?

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• 3878 - iCE40: What is the state of flip-flops during Power On Reset (POR) in iCE40 devices?

  The global reset control signal connects to all Programmable Logic Blocks (PLBs) and Programmable Inputs/Outputs (PIOs) flip-flops on the iCE40 device. The global reset signal is automatically asserted throughout the configuration process, forcing ...

• 2070 - Power Manager II: What is the POR state of I2C controlled input and output pins in POWR1014A?

  Description:Input pins that are "controlled" by I2C remain in high impedance (high-Z) state as they are not bidirectional pins and they are always inputs. Output pins that are controlled by I2C, will follow the behavior as listed in Table "I2C ...

• 2182 - [Platform Manager 2] Will POR signal be generated when only VCCINP is present and VCCD/VCCA are unavailable, causing a defined state at the OUTx pins?

  For proper operation of asynchronous set/resets of our flip-flops, internal POR generation logic is available. This POR circuitry works by detecting voltage levels of the VCCA, VCCD supply lines. The unavailability of analog and digital supply lines ...

• 619 - What is the detailed power-up sequence for a MachXO device?

  The following is the power-up sequence for a MachXO device: - All IOs trisate with a weak pull up - POR (Power On Reset) for internal circuitry asserted - Vcc and Vccaux reach minimum recommended datasheet levels - POR (Power On Reset) for internal ...

• 5645 - MachXO2/MachXO3 :Are there any power supply sequence requirement for MachXO2 and MachXO3 devices?

  POR is controlled by VCC and VCCIO0. As such, these banks should be brought up first. The typical I/O behavior during power-up is described below: The internal power-on-reset (POR) signal is deactivated when VCC and VCCIO0 reach VPORUP level. This is ...