AT32UC3L-EK Atmel, AT32UC3L-EK Datasheet - Page 593

• Manufacturer Part Number: AT32UC3L-EK
• Description: KIT EVAL AVR32 UC3 MCU
• Manufacturer: Atmel
• Type: MCUr

Specifications of AT32UC3L-EK

• Contents: *
• Silicon Manufacturer: Atmel
• Core Architecture: AVR
• Core Sub-architecture: UC3L
• Kit Contents: Board
• Features: USB / Battery Powered, Board Controller / Bootloader
• Svhc: No SVHC (15-Dec-2010)
• Rohs Compliant: Yes
• Tool Type: Starter Kit
• Cpu Core: AVR 8
• Data Bus Width: 8 bit
• Processor Series: AT32
• Processor To Be Evaluated: AT32UC3L064
• Interface Type: USB, Capacitive Touch
• For Use With/related Products: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

25. Peripheral Event System
25.1
25.2
25.3
Figure 25-1. Peripheral Event System Block Diagram
25.4
25.4.1
32099F–11/2010
Features
Overview
Peripheral Event System Block Diagram
Functional Description
Configuration
Generator
Generator
Rev: 1.0.0.1
•
•
•
•
Several peripheral modules can be configured to emit or respond to signals known as peripheral
events. The exact condition to trigger a peripheral event, or the action taken upon receiving a
peripheral event, is specific to each module. Peripherals that respond to peripheral events are
called peripheral event users and peripherals that emit peripheral events are called peripheral
event generators. A single module can be both a peripheral event generator and user.
The peripheral event generators and users are interconnected by a network known as the
Peripheral Event System. This allows low latency peripheral-to-peripheral signaling without CPU
intervention, and without consuming system resources such as bus or RAM bandwidth. This
offloads the CPU and system resources compared to a traditional interrupt-based software
driven system.
The Peripheral Event System in the AT32UC3L has a fixed mapping of peripheral events
between generators and users, as described in
not need to configure the interconnection between the modules, although each peripheral event
can be enabled or disabled at the generator or user side as described in the peripheral chapter
for each module.
Direct peripheral to peripheral communication system
Allows peripherals to receive, react to, and send peripheral events without CPU intervention
Cycle deterministic event communication
Asynchronous interrupts allow advanced peripheral operation in low power sleep modes
Peripheral
System
Event
Table 25-1
AT32UC3L016/32/64
Generator/
to
Table
User
User
25-4. Thus, the user does
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