TMS320C6672
Multicore Fixed and Floating-Point Digital Signal Processor
SPRS708C—February 2012
www.ti.com
Table 3-12
NMI Generation Register (NMIGRx) Field Descriptions
Description
Bit
31-1
0
Field
Reserved
NMIG
Reserved
NMI pulse generation.
Reads return 0
Writes:
0 = No effect
1 = Creates NMI pulse to the corresponding CorePac — CorePac0 for NMIGR0, etc.
End of Table 3-12
3.3.12 IPC Generation (IPCGRx) Registers
IPCGRx are the IPC interrupt generation registers to facilitate inter CorePac interrupts.
The C6672 has two IPCGRx registers (IPCGR0 through IPCGR1). These registers can be used by external hosts or
CorePacs to generate interrupts to other CorePacs. A write of 1 to IPCG field of IPCGRx register will generate an
interrupt pulse to CorePacx (0 <= x <= 1).
These registers also provide a Source ID facility by which up to 28 different sources of interrupts can be identified.
Allocation of source bits to source processor and meaning is entirely based on software convention. The register field
descriptions are given in the following tables. Virtually anything can be a source for these registers as this is
completely controlled by software. Any master that has access to BOOTCFG module space can write to these
registers. The IPC Generation Register is shown in Figure 3-11 and described in Table 3-13.
Figure 3-11
IPC Generation Registers (IPCGRx)
31
30
29
28
27
8
7
6
5
4
3
1
0
SRCS27 SRCS26 SRCS25 SRCS24
RW +0 RW +0 RW +0 RW +0
SRCS23 – SRCS4
SRCS3
RW +0
SRCS2
RW +0
SRCS1
RW +0
SRCS0
RW +0
Reserved
R, +000
IPCG
RW +0
RW +0 (per bit field)
Legend: R = Read only; RW = Read/Write; -n = value after reset
Table 3-13
IPC Generation Registers (IPCGRx) Field Descriptions
Bit
Field
SRCSx
Description
31-4
Interrupt source indication.
Reads return current value of internal register bit.
Writes:
0 = No effect
1 = Sets both SRCSx and the corresponding SRCCx.
3-1
0
Reserved
IPCG
Reserved
Inter-DSP interrupt generation.
Reads return 0.
Writes:
0 = No effect
1 = Creates an Inter-DSP interrupt.
End of Table 3-13
82
Device Configuration
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