Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

VCCIO and EPCS Issue

Hi, All We are using EPCS and CycloneIII device. As EPCS can only support 3.3V, the IO pin connect seems must Power by 3.3V, which means VCCIO of Bank1 in FPGA must tie to 3.3V power. Then h...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Page 11 of this PDF says :

--- Quote Start ---

Hardwire the MSEL pins to VCCA or GND without any pull-up or pull-down resistors to avoid any problems detecting an incorrect configuration scheme. Do not drive the MSEL pins with a microprocessor or another device.

--- Quote End ---

But if that means that this bank needs to be 2.5V too, i don't think so that MSEL interfears with Vio of a bank, but look into the pdf of your device.