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STM32F072 datasheet APB2 reference?

Question asked by afonso.luis.002 on Dec 26, 2014
Latest reply on Dec 26, 2014 by Clive One
Hi everyone

So I've been trying to find reference on the datasheet of the STM32F072RB for the APB2 but with no avail.
I am talking about this one http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00090510.pdf
That is in here:
http://www.st.com/web/catalog/mmc/FM141/SC1169/SS1574/LN1823/PF259605

So what's the deal with that?
I know the APB2 exists there because when i tried to use Timer17 it didn't work using APB1, since there's a 1 in there i assumed there's a 2.
Checking in the source files i can see which peripherals are in APB1 and APB2.
The clock configuration tool also provided that information.

There's also the reference manual, and this actually refers the APB2/APB1 registers, but it doesn't really explain much about which peripherals use it.

What's the deal with that? Where can i get more info about those busses and why they are different (and need to be)?

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