Datasheet

227
32117D–AVR-01/12
AT32UC3C
14.3 Block Diagram
The main building blocks of the PEVC are:
• Event Shapers (EVS): Instantiated for some generators, in case filtering and/or rising/falling
edge detection is needed prior to peripheral event propagation
• Channels: One channel per user, to propagate events and follow-up the user status
To help distinguish the different signalling stages, these naming conventions are used:
• Generators generate events
• PEVC multiplexes these incoming events
• PEVC outputs Triggers to users
Figure 14-2. PEVC Block Diagram
The maximum number of generators, Event Shapers, channels, and users supported by the
Peripheral Event Controller is 64. Please refer to the Module Configuration section at the end of
this chapter for the device-specific configuration.
Channel
0
Channel
...
Channel
n
User
0
Generator
...
Generator
0
EVS
0
PEVC
User
...
EVT0
EVS
...
Generator
...
Generator
...
Generator
m
User
n
RCSYS CLK_PEVC
TRIG0
TRIG...
TRIGn
EVT...
EVT...
EVT...
EVTm
SEV CHMX
RDY0
RDY...
RDYn