Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Data Sheet
Product codes
AT91SAM9N12-EK
56
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
11.3
Block Diagram
Figure 11-1. Block Diagram
11.4
Application Block Diagram
Figure 11-2. Description of the Application Block
11.5
AIC Detailed Block Diagram
Figure 11-3. AIC Detailed Block Diagram
AIC
APB
ARM
Processor
FIQ
IRQ0-IRQn
Embedded
PeripheralEE
Peripheral
Embedded
Peripheral
Embedded
Up to
Thirty-two
Sources
nFIQ
nIRQ
Advanced Interrupt Controller
Embedded Peripherals
External Peripherals
(External Interrupts)
(External Interrupts)
Standalone
Applications
RTOS Drivers
Hard Real Time Tasks
OS-based Applications
OS Drivers
General OS Interrupt Handler
FIQ
PIO
Controller
Advanced Interrupt Controller
IRQ0-IRQn
PIOIRQ
Embedded
Peripherals
External
Source
Input
Stage
Internal
Source
Input
Stage
Fast
Forcing
Interrupt
Priority
Controller
Fast
Interrupt
Controller
ARM
Processor
nFIQ
nIRQ
Power
Management
Controller
Wake Up
User Interface
APB
Processor
Clock