ATEVK1104 Atmel, ATEVK1104 Datasheet - Page 106

• Manufacturer Part Number: ATEVK1104
• Description: KIT DEV/EVAL FOR AVR32 AT32UC3A
• Manufacturer: Atmel
• Series: AVR®32r
• Type: MCUr

Specifications of ATEVK1104

• Contents: Evaluation Board, Software and Documentation
• Processor To Be Evaluated: AT32UC3A3
• Data Bus Width: 32 bit
• Interface Type: USB, SPI, USART
• Silicon Manufacturer: Atmel
• Core Architecture: AVR
• Core Sub-architecture: AVR UC3
• Silicon Core Number: AT32UC3A3256
• Silicon Family Name: AVR
• Kit Contents: Board CD Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT32UC3A3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

17.3
Figure 17-1. External Interrupt Module block diagram
17.4
17.4.1
17.4.2
17.4.3
32058J–AVR32–04/11
EXTINTn
Block Diagram
Product Dependencies
I/O Lines
Power Management
Interrupt
NMI
The External Interrupt and keypad scan pins are multiplexed with PIO lines. To act as external
interrupts, these pins must be configured as inputs pins by the PIO controller. It is also possible
to trigger the interrupt by driving these pins from registers in the PIO controller, or another
peripheral output connected to the same pin.
All interrupts are available in every sleep mode. However, in sleep modes where the clock is
stopped, asynchronous interrupts must be selected.
The external interrupt lines are connected to internal sources of the interrupt controller. Using
the external interrutps requires the interrupt controller to be programmed first.
Using the Non-Maskable Interrupt does not require the interrupt controller to be programmed.
EIM_CTRL
Enable
EIM_DIS
EIM_EN
RC clk
Prescaler
EIM_FILTER
EIM_LEVEL
EIM_MODE
Filter
EIM_EDGE
Polarity
control
PRESC
Edge/Level
Detector
EIM_LEVEL
EIM_MODE
EIM_EDGE
Asynchronus
EIM_SCAN
detector
Shifter
EN
PIN
EIM_ICR
EIM_ISR
INTn
detect
Wake
SCAN
EIM_WAKE
AT32UC3A
EIM_IER
EIM_IDR
EIM_IMR
Mask
IRQn
106