So I am working on a complex design that includes a BGA device with rather large number of pads that are grouped by functions (an ARM MCU and groups are MDIO, MMC, SERDES etc). This is my first project of doing such complex one, so forgive the lame question.
I've created a custom library device for this (since I could not find a ready device for this chip). And for this device I've created 1 symbol and 1 footprint.
I, of course, can work on schematics with this single symbol, but that is going to be a huge mess (~400 pins on this symbol).
I can see plenty of schematics (exported into PDF) show these are split into independent groups. Such as one schematics sheet would show everything power related and another for example everything MMC related (and symbols on each sheet would be that of only relevant pins of the chip). See attached pic below.
How do I achieve that in Eagle?
Additional question: I see in those schematics also that the whole design is split into blocks (i.e. as on attached picture with B2B_xxx connections) and the wire would resume on another sheet. How would I go about doing that?