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Altera_Forum's avatar
Altera_Forum
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10 years ago

arriaII GX VCCIO

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I'm planning to use EP2AGX65DF29C4.<br>

I'm designing a power supply.The outline is as follows.<br>

BANK3A VCCIO3A=2.5V VCCPD3A=2.5V<br>

BANK4A VCCIO4A=1.5V VCCPD4A=2.5V (for DDR3)<br>

BANK5A VCCIO5A=3.3V VCCPD5A=3.3V<br>

BANK6A VCCIO6A=3.3V VCCPD6A=3.3V<br>

BANK7A VCCIO7A=1.5V VCCPD7A=2.5V (for DDR3)<br>

BANK8A VCCIO8A=3.3V VCCPD8A=3.3V<br>

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configuration<br>

BANK3C VCCIO3C=3.3V VCCPD3C=3.3V<br>

BANK8C VCCIO8C=3.3V VCCPD8C=3.3V<br>

The voltage of the BANK3C is different from BANK3A here.<br>

BANK3C and BANK3A are the same BANK3.<br>

Is this setting possible?<br>

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4 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    10 years ago

    Normally the Vccio3A and 3C are different bank given the name 3A and 3C. To confirm this you can check your design in the QII fitter report for the bank voltages

  • Altera_Forum's avatar
    Altera_Forum
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    10 years ago

    You can cross check the implementation by running through Fitter compilation. As long as the voltage setting can pass Fitter compilation, there should be no issue. If you do not have a design to test out yet, you can try to create simple design with output pins set to specific voltage and assign to the specific bank. Generally, the bank will be assigned vccio according to the output pin.

  • Altera_Forum's avatar
    Altera_Forum
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    10 years ago

    --- Quote Start ---

    The Bank 3A and 3C is different I/O bank which can be assigned with different I/O standard.

    Bank 3C and 8C are dedicated configuration banks. You can refer to the Arria II handbook, Figure 6.1 for details:

    https://www.altera.com/content/dam/altera-www/global/en_us/pdfs/literature/hb/arria-ii-gx/aiigx_51006.pdf

    --- Quote End ---

    Thank you irish-san,bfkstimchan-san and ah_zhi02-san

    I attach fitter report.

    All except for configuration bank are the voltages I intended(2.5V,3.3V).

    configuration bank voltage is 2.5V.

    Do I have the way to set configuration bank voltage as 3.3V using QuartusII?

    I set a power supply of MSEL,conf_done,JTAG etc to 3.3V(By a circuit diagram.).

    For example through Resistance I connect MSEL to 3.3V.

    Or isn't it necessary to set C to 3,3V?

    Should I use 2.5V power supply like a circuit of attachment?