at91sam9g20-cu ATMEL Corporation, at91sam9g20-cu Datasheet - Page 314

• Manufacturer Part Number: at91sam9g20-cu
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

27.2
27.3
27.4
314
Block Diagram
Application Block Diagram
AIC Detailed Block Diagram
AT91SAM9G20 Preliminary
Figure 27-1. Block Diagram
Figure 27-2. Description of the Application Block
Figure 27-3. AIC Detailed Block Diagram
IRQ0-IRQn
FIQ
Applications
Standalone
Peripherals
Embedded
PIOIRQ
Controller
Embedded Peripherals
Embedded
PeripheralEE
PIO
Embedded
Peripheral
Embedded
Peripheral
IRQ0-IRQn
FIQ
OS Drivers
External
Internal
Source
Source
Stage
Stage
Input
Input
General OS Interrupt Handler
Advanced Interrupt Controller
Advanced Interrupt Controller
Forcing
Thirty-two
Sources
Fast
OS-based Applications
User Interface
Up to
AIC
RTOS Drivers
APB
APB
External Peripherals
(External Interrupts)
Controller
Controller
Interrupt
Interrupt
Priority
Fast
Hard Real Time Tasks
nIRQ
nFIQ
Processor
ARM
Wake Up
Processor
Clock
Management
nFIQ
nIRQ
Controller
Processor
6384B–ATARM–15-Dec-08
Power
ARM