STK1000/Block diagram
From AVRFreaks Wiki
The following block diagram shows STK1000 with a generic daughter board mounted.
Notes to developer
For simplicity the block diagram shows the EBI and all other signals collected into two buses.
The External Bus Interface (EBI) is connected to the memory hierarchy including SDRAM, parallel flash and the Compact Flash connector. The EBI is also routed to the PCI expansion connector to allow for expansion of the boards memory hierarchy through expansion cards. The SD/MMC connector is also part of the boards memory hierarchy but this is not connected to the EBI bus of AVR32 parts. The EBI is never multiplexed with other peripherals so no switches is necessary on the daughter board.
All GPIO ports on AVR32 have multiple functions. To ensure that there is no bus collision there are switches on the daughter board selecting which peripherals on the motherboard to connect to. The implementation of these switches depend on the daughter board in use. Please refer to the help file for the daughter board in use for a description of the switches and its jumper settings.