Datasheet

29
SAM9263 [DATASHEET]
Atmel-6249N-ATARM-SAM9263-Datasheet_14-Mar-16
8. System Controller
The System Controller is a set of peripherals that allow handling of key elements of the system, such as power,
resets, clocks, time, interrupts, watchdog, etc.
The System Controller User Interface also embeds registers that are used to configure the Bus Matrix and a set of
registers for the chip configuration. The chip configuration registers can be used to configure:
 EBI0 and EBI1 chip select assignment and voltage range for external memories
 ARM Processor Tightly Coupled Memories
The System Controller peripherals are all mapped within the highest 16 Kbytes of address space, between
addresses 0xFFFF C000 and 0xFFFF FFFF.
However, all the registers of the System Controller are mapped on the top of the address space. This allows all the
registers of the System Controller to be addressed from a single pointer by using the standard ARM instruction set,
as the Load/Store instructions have an indexing mode of ± 4 Kbytes.
Figure 8-1 on page 31 shows the System Controller block diagram.
Figure 7-1 on page 24 shows the mapping of the User Interfaces of the System Controller peripherals.