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GhamdiASA's avatar
GhamdiASA
Icon for New Contributor rankNew Contributor
1 year ago

10CX105YF672FPGA: question about the INIT_DONE pin voltage

Hello, We are designing a circuit that uses 10CX105YF672. We want to enable the INIT-DONE function, and in the pin connection guidelines document, it says to connect the pin to VCCPGM (1.8V in our d...
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FakhrulA_altera's avatar
FakhrulA_altera
Icon for Regular Contributor rankRegular Contributor
1 year ago

Hi,


For INIT_DONE pin, this is a dual-purpose pin and can be used as an I/O pin when not enabled as INIT_DONE.


When using as optionally open-drain output dedicated INIT_DONE pin, a transition from low to high at the pin indicates when the device has entered user mode. The INIT_DONE pin cannot be used as a user I/O pin after configuration. Connect this pin to an external 10-kΩ pull-up resistor to VCCPGM.


When using in an AS or PS multi-device configuration mode ensure INIT_DONE is enabled in the Quartus Prime design. When not using as the dedicated INIT_DONE pin, and when this pin is not used as an I/O pin, then connect this pin as defined in the Quartus Prime software.


Thanks,

Fakhrul