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MINWOO-SEO's avatar
MINWOO-SEO
Icon for New Contributor rankNew Contributor
2 years ago
Solved

Can EPM3032 GLCK2/ GCLRn/ OE1/ GCLK1 be used as INPUT pins like regular I/O pins?

@EPM3032ATC44-10N

@CPLD

@Quartus

EPM3032ATC44-10N CPLD product
Pin 37: GLCK1
Pin 38: OE1
Pin 39: GCLRn
Pin 40: GCLK2
Can the pin be used like a regular I/O port?
Can it only be used on the INPUT pin?

Pins 37 to 40 above are required. but
Since it seems to be designated as a pin that plays several important roles, such as the global OE1 pin, I would like to inquire whether it can be used as a basic I/O port or INPUT pin.

  • _AK6DN_'s avatar
    _AK6DN_
    2 years ago

    Yes, those pins all drive into the internal PIA matrix and thus can be used as an input into any logic equation.

    Inputs only however, there is no output capability on those pins.

3 Replies

  • _AK6DN_'s avatar
    _AK6DN_
    Icon for Frequent Contributor rankFrequent Contributor
    2 years ago

    Yes, those pins all drive into the internal PIA matrix and thus can be used as an input into any logic equation.

    Inputs only however, there is no output capability on those pins.

  • AqidAyman_Altera's avatar
    AqidAyman_Altera
    Icon for Regular Contributor rankRegular Contributor
    2 years ago

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