參數(shù)資料
型號: TMS32C5402PGER10G4
廠商: Texas Instruments, Inc.
元件分類: 數(shù)字信號處理
英文描述: FIXED-POINT DIGITAL SIGNAL PROCESSOR
中文描述: 定點(diǎn)數(shù)字信號處理器
文件頁數(shù): 26/68頁
文件大?。?/td> 948K
代理商: TMS32C5402PGER10G4
SPRS079E – OCTOBER 1998 – REVISED AUGUST 2000
26
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
DMA channel interrupt selection
The DMA controller can generate a CPU interrupt for each of the six channels. However, the interrupt sources
for channels 0,1, 2, and 3 are multiplexed with other interrupt sources. DMA channels 2 and 3 share an interrupt
line with the receive and transmit portions of McBSP1 (IMR/IFR bits 10 and 11), and DMA channel 1 shares an
interrupt line with timer 1 (IMR/IFR bit 7). The interrupt source for DMA channel 0 is shared with a reserved
interrupt source. When the ’5402 is reset, the interrupts from these four DMA channels are deselected. The
INTSEL bit field in the DMA channel priority and enable control (DMPREC) register can be used to select these
interrupts, as shown in Table 8.
Table 8. DMA Channel Interrupt Selection
INTSEL Value
IMR/IFR[6]
IMR/IFR[7]
IMR/IFR[10]
IMR/IFR[11]
00b (reset)
Reserved
TINT1
BRINT1
BXINT1
01b
Reserved
TINT1
DMAC2
DMAC3
10b
DMAC0
DMAC1
DMAC2
DMAC3
11b
Reserved
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