AT91SAM9CN11-CFU View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT91SAM9CN11-CFU

ARM-based Embedded MPU

Atmel Corporation 

7. System Controller

The System Controller is a set of peripherals that allows handling of key elements of the system, such as power, resets,

clocks, time, interrupts, watchdog, etc.

The System Controller User Interface also embeds the registers that configure the Matrix and a set of registers for the

chip configuration. The chip configuration registers configure the EBI chip select assignment and voltage range for

external memories.

7.1 System Controller Mapping

The System Controller’s peripherals are all mapped within the highest 16 Kbytes of address space, between addresses

0xFFFF E400 and 0xFFFF FFFF.

However, all the registers of the System Controller are mapped on the top of the address space. All the registers of the

System Controller can be addressed from a single pointer by using the standard ARM instruction set, as the Load/Store

instruction have an indexing mode of ±4 Kbytes.

Figure 7-1 on page 28 shows the System Controller block diagram.

Figure 6-1 on page 24 shows the mapping of the User Interfaces of the System Controller peripherals.

SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET] 27

11063K–ATARM–05-Nov-13

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