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Altera_Forum's avatar
Altera_Forum
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16 years ago

max II clpd EPM570T100I5

i want to use SMBus as well as I2C bus support from above mentioned part.

if it is possible to do so? i.e. are there 4 lines (2 for SMBus and 2 for I2C)?

2 Replies

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

    There are no dedicated pin for these signals.

    The device has no ready to use build in functionality for I2C or SMBus.

    You must include these functionality as ip blocks into this device.

    it depends on the ip function size wheter it fits into the device or not.

    if both functions can be included it depends on if you can combine their signals how many pins you will need. for example if you can combine the clock signal for both ip functions.

    and if you can combine the bidirectonal data io signal.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    You can use any available I/O pin, but there's no dedicated

    I2C or SMBus hardware interface, you have to provide it

    in your design.