TMS320C6672
Multicore Fixed and Floating-Point Digital Signal Processor
SPRS708C—February 2012
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There are a large amount of events on the chip level. The chip level CIC provides a flexible way to combine and
remap those events. Multiple events can be combined to a single event through chip level CIC. However, an event
can only be mapped to a single event output from the chip level CIC. The chip level CIC also allows the software to
trigger system event through memory writes. The broadcast events to C66x CorePacs can be used for
synchronization among multiple cores or inter-processor communication purpose and etc. For more details on the
CIC features, please refer to the Chip Interrupt Controller (CIC) for KeyStone Devices User Guide in ‘‘Related
Documentation from Texas Instruments’’ on page 69.
Note—Modules such as MPU, Tracer, and BOOT_CFG have level interrupts and EOI handshaking
interface. The EOI value is 0 for MPU, Tracer, and BOOT_CFG.
Figure 7-29 shows the C6672 interrupt topology.
Figure 7-29
TMS320C6672 Interrupt Topology
98 Primary Events
17 Secondary Events
Core0
Core1
14 Reserved Secondary Events
89 Core-only Secondary Events
57 Common Events
5 Reserved Primary Events
98 Primary Events
17 Secondary Events
CIC0
5 Reserved Primary Events
8 Broadcast Events from CIC0
32 Primary Events
26 Secondary Events
EDMA3
CC1
57 Common Events
6 Reserved Primary Events
39 Reserved Secondary Events
CIC2
34 Primary Events
24 Secondary Events
64 EDMA3CC-only
Secondary Events
EDMA3
CC2
6 Reserved Primary Events
32 Primary Events
HyperLink
41 Reserved Secondary Events
39 Events
32 Secondary Events
CIC3
8 Primary Events
EDMA3
CC0
8 Secondary Events
Table 7-38 shows the mapping of system events. For more information on the Interrupt Controller, see the C66x
CorePac User Guide in ‘‘Related Documentation from Texas Instruments’’ on page 69.
Table 7-38
TMS320C6672 System Event Mapping — C66x CorePac Primary Interrupts (Part 1 of 4)
Event Number
Interrupt Event
EVT0
Description
0
1
2
Event combiner 0 output
Event combiner 1 output
Event combiner 2 output
EVT1
EVT2
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Peripheral Information and Electrical Specifications 157
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