參數(shù)資料
型號(hào): TMX320C6412GNZ
廠商: Texas Instruments, Inc.
英文描述: Signal Processor
中文描述: 信號(hào)處理器
文件頁(yè)數(shù): 44/159頁(yè)
文件大?。?/td> 1989K
代理商: TMX320C6412GNZ
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EDMA Channel Synchronization Events
44
April 2003 Revised June 2004
SPRS219D
1.8
EDMA Channel Synchronization Events
The C64x EDMA supports up to 64 EDMA channels which service peripheral devices and external memory.
Table 124 lists the source of C64x EDMA synchronization events associated with each of the programmable
EDMA channels. For the C6412 device, the association of an event to a channel is fixed; each of the EDMA
channels has one specific event associated with it. These specific events are captured in the EDMA event
registers (ERL, ERH) even if the events are disabled by the EDMA event enable registers (EERL, EERH). The
priority of each event can be specified independently in the transfer parameters stored in the EDMA parameter
RAM. For more detailed information on the EDMA module and how EDMA events are enabled, captured,
processed, linked, chained, and cleared, etc., see the
TMS320C6000 DSP Enhanced Direct Memory Access
(EDMA) Controller Reference Guide
(literature number SPRU234).
Table 124. TMS320C6412 EDMA Channel Synchronization Events
EDMA
CHANNEL
EVENT NAME
EVENT DESCRIPTION
0
DSP_INT
HPI/PCI-to-DSP interrupt
1
TINT0
Timer 0 interrupt
2
TINT1
Timer 1 interrupt
3
SD_INTA
EMIFA SDRAM timer interrupt
4
GPINT4/EXT_INT4
GP0 event 4/External interrupt pin 4
5
GPINT5/EXT_INT5
GP0 event 5/External interrupt pin 5
6
GPINT6/EXT_INT6
GP0 event 6/External interrupt pin 6
7
GPINT7/EXT_INT7
GP0 event 7/External interrupt pin 7
8
GPINT0
GP0 event 0
9
GPINT1
GP0 event 1
10
GPINT2
GP0 event 2
11
GPINT3
GP0 event 3
12
XEVT0
McBSP0 transmit event
13
REVT0
McBSP0 receive event
14
XEVT1
McBSP1 transmit event
15
REVT1
McBSP1 receive event
1618
None
19
TINT2
Timer 2 interrupt
2043
None
44
ICREVT0
I2C0 receive event
45
ICXEVT0
I2C0 transmit event
4647
None
48
GPINT8
GP0 event 8
49
GPINT9
GP0 event 9
50
GPINT10
GP0 event 10
51
GPINT11
GP0 event 11
52
GPINT12
GP0 event 12
In addition to the events shown in this table, each of the 64 channels can also be synchronized with the transfer completion or alternate transfer
completion events. For more detailed information on EDMA event-transfer chaining, see the
TMS320C6000 DSP Enhanced Direct Memory
Access (EDMA) Controller Reference Guide
(literature number SPRU234).
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