參數(shù)資料
型號: TMS320VC5409GGU-100
元件分類: 數(shù)字信號處理
英文描述: 16-Bit Digital Signal Processor
中文描述: 16位數(shù)字信號處理器
文件頁數(shù): 30/78頁
文件大小: 1018K
代理商: TMS320VC5409GGU-100
TMS320VC5409
FIXED-POINT DIGITAL SIGNAL PROCESSOR
SPRS082C – APRIL 1999 – REVISED MARCH 2000
30
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, due to a limit on the
number of internal CPU interrupt inputs, channels 0, 1, 2, and 3 are multiplexed with other interrupt sources.
DMA channels 0, 1, 2, and 3 share an interrupt line with the receive and transmit portions of the McBSP. When
the ’5409 is reset, the interrupts from these three DMA channels are deselected. The INTSEL bit field in the
DMPREC register can be used to select these interrupts, as shown in Table 12.
Table 12. DMA Channel Interrupt Selection
INTSEL Value
IMR/IFR[6]
IMR/IFR[7]
IMR/IFR[10]
IMR/IFR[11]
00b (reset)
BRINT2
BXINT2
BRINT1
BXINT1
01b
BRINT2
BXINT2
DMAC2
DMAC3
10b
DMAC0
DMAC1
DMAC2
DMAC3
11b
Reserved
memory-mapped registers
The ’5409 has 27 memory-mapped CPU registers, which are mapped in data memory space addresses 0h to
1Fh. The device also has a set of memory-mapped registers associated with peripherals. Table 13 gives a list
of CPU memory-mapped registers (MMRs) available on ’5409. Table 14 shows additional peripheral MMRs
associated with the ’5409.
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