
SMJ320C6414, SMJ320C6415, SMJ320C6416
FIXEDPOINT DIGITAL SIGNAL PROCESSORS
SGUS050A JANUARY 2004 REVISED MARCH 2004
29
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HOUSTON, TEXAS 772511443
interrupt sources and interrupt selector (continued)
Table 25. C64x DSP Interrupts
CPU
INTERRUPT
NUMBER
INTERRUPT
SELECTOR
CONTROL
REGISTER
SELECTOR
VALUE
(BINARY)
INTERRUPT
EVENT
INTERRUPT SOURCE
INT_00
RESET
INT_01
NMI
INT_02
Reserved
Reserved. Do not use.
INT_03
Reserved
Reserved. Do not use.
INT_04
MUXL[4:0]
00100
GPINT4/EXT_INT4
GPIO interrupt 4/External interrupt pin 4
INT_05
MUXL[9:5]
00101
GPINT5/EXT_INT5
GPIO interrupt 5/External interrupt pin 5
INT_06
MUXL[14:10]
00110
GPINT6/EXT_INT6
GPIO interrupt 6/External interrupt pin 6
INT_07
MUXL[20:16]
00111
GPINT7/EXT_INT7
GPIO interrupt 7/External interrupt pin 7
INT_08
MUXL[25:21]
01000
EDMA_INT
EDMA channel (0 through 63) interrupt
INT_09
MUXL[30:26]
01001
EMU_DTDMA
EMU DTDMA
INT_10
MUXH[4:0]
00011
SD_INTA
EMIFA SDRAM timer interrupt
INT_11
MUXH[9:5]
01010
EMU_RTDXRX
EMU real-time data exchange (RTDX)
receive
INT_12
MUXH[14:10]
01011
EMU_RTDXTX
EMU RTDX transmit
INT_13
MUXH[20:16]
00000
DSP_INT
HPI/PCI-to-DSP interrupt
(PCI supported on C6415 and C6416 only)
INT_14
MUXH[25:21]
00001
TINT0
Timer 0 interrupt
INT_15
MUXH[30:26]
00010
TINT1
Timer 1 interrupt
01100
XINT0
McBSP0 transmit interrupt
01101
RINT0
McBSP0 receive interrupt
01110
XINT1
McBSP1 transmit interrupt
01111
RINT1
McBSP1 receive interrupt
10000
GPINT0
GPIO interrupt 0
10001
XINT2
McBSP2 transmit interrupt
10010
RINT2
McBSP2 receive interrupt
10011
TINT2
Timer 2 interrupt
10100
SD_INTB
EMIFB SDRAM timer interrupt
10101
Reserved
Reserved. Do not use.
10110
Reserved
Reserved. Do not use.
10111
UINT
UTOPIA interrupt (C6415/C6416 only)
11000 11101
Reserved
Reserved. Do not use.
11110
VCPINT
VCP interrupt (C6416 only)
11111
TCPINT
TCP interrupt (C6416 only)
Interrupts INT_00 through INT_03 are non-maskable and fixed.
Interrupts INT_04 through INT_15 are programmable by modifying the binary selector values in the Interrupt Selector Control
registers fields. Table 25 shows the default interrupt sources for Interrupts INT_04 through INT_15. For more detailed
information on interrupt sources and selection, see the TMS320C6000 DSP Interrupt Selector Reference Guide (literature
number SPRU646).