Datasheet
(DRVCTRL.FILTERVALn). Therefore, the event detection is synchronous, and event action is delayed by
the selected digital filter value clock cycles.
When the Fault Detection on Debug Break Detection bit in Debug Control register (DGBCTRL.FDDBD) is
written to '1', a non-recoverable Debug Faults State and an interrupt (DFS) is generated when the system
goes in debug operation.
In RAMP2, RAMP2A, or DSBOTH operation, when the Lock Update bit in the Control B register is set by
writing CTRLBSET.LUPD=1 and the ramp index or counter direction changes, a non-recoverable Update
Fault State and the respective interrupt (UFS) are generated.
31.6.3.7 Waveform Extension
Figure 31-33 shows a schematic diagram of actions of the four optional units that follow the recoverable
fault stage on a port pin pair: Output Matrix (OTMX), Dead-Time Insertion (DTI), SWAP and Pattern
Generation. The DTI and SWAP units can be seen as a four port pair slices:
• Slice 0 DTI0 / SWAP0 acting on port pins (WO[0], WO[WO_NUM/2 +0])
• Slice 1 DTI1 / SWAP1 acting on port pins (WO[1], WO[WO_NUM/2 +1])
And more generally:
• Slice n DTIx / SWAPx acting on port pins (WO[x], WO[WO_NUM/2 +x])
Figure 31-33. Waveform Extension Stage Details
OTMX[x]
DTIx
LS
HS
OTMX[x+WO_NUM/2]
DTIxEN SWAPx
PGO[x+WO_NUM/2]
PGO[x]
PGV[x+WO_NUM/2]
PGV[x]
INV[x+WO_NUM/2]
P[x+WO_NUM/2]
INV[x]
P[x]
PORTSWEX
OTMX
OTMX DTI SWAP PATTERN
The output matrix (OTMX) unit distributes compare channels, according to the selectable configurations
in Table 31-4.
Table 31-4. Output Matrix Channel Pin Routing Configuration
Value OTMX[x]
0x0 CC3 CC2 CC1 CC0 CC3 CC2 CC1 CC0
0x1 CC1 CC0 CC1 CC0 CC1 CC0 CC1 CC0
0x2 CC0 CC0 CC0 CC0 CC0 CC0 CC0 CC0
0x3 CC1 CC1 CC1 CC1 CC1 CC1 CC1 CC0
Notes on Table 31-4:
• Configuration 0x0 is the default configuration. The channel location is the default one, and channels
are distributed on outputs modulo the number of channels. Channel 0 is routed to the Output matrix
output OTMX[0], and Channel 1 to OTMX[1]. If there are more outputs than channels, then channel
SAM D21 Family
TCC – Timer/Counter for Control Applications
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 733