Flash memory range on STM32F429II
For greater detail on anything STM32F4 related you should refer to the STM32F4 Reference Manaul - it tells you everything you could ever need to know about anything.

For instance, in section 3, it tells you:



So you can see than bank 1 is 0x08000000 to 0x080FFFFF and bank 2 is 0x08100000 to 0x081FFFFF.