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TMS320VC5416GGU160 Datasheet

  • TMS320VC5416GGU160

  • TMS320VC5416 Fixed-Point Digital Signal Processor

  • 855.08KB

  • 98页

  • TI

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TMS320VC5416
Fixed-Point Digital Signal Processor
SPRS095O 鈥?MARCH 1999 鈥?REVISED JANUARY 2005
www.ti.com
3.12.8
DMA Transfer in Doubleword Mode
Doubleword mode allows the DMA to transfer 32-bit words in any index mode. In doubleword mode, two
consecutive 16-bit transfers are initiated and the source and destination addresses are automatically
updated following each transfer. In this mode, each 32-bit word is considered to be one element.
3.12.9
DMA Channel Index Registers
The particular DMA channel index register is selected by way of the SIND and DIND fields in the DMA
transfer mode control register (DMMCRn). Unlike basic address adjustment, in conjunction with the frame
index DMFRI0 and DMFRI1, the DMA allows different adjustment amounts depending on whether or not
the element transfer is the last in the current frame. The normal adjustment value (element index) is
contained in the element index registers DMIDX0 and DMIDX1. The adjustment value (frame index) for
the end of the frame, is determined by the selected DMA frame index register, either DMFRI0 or DMFRI1.
The element index and the frame index affect address adjustment as follows:
鈥?/div>
Element index: For all except the last transfer in the frame, the element index determines the amount
to be added to the DMA channel for the source/destination address register (DMSRCx/DMDSTx) as
selected by the SIND/DIND bits.
鈥?/div>
Frame index: If the transfer is the last in a frame, frame index is used for address adjustment as
selected by the SIND/DIND bits. This occurs in both single-frame and multiframe transfers.
3.12.10
DMA Interrupts
The ability of the DMA to interrupt the CPU based on the status of the data transfer is configurable and is
determined by the IMOD and DINM bits in the DMA transfer mode control register (DMMCRn). The
available modes are shown in Table 3-11.
Table 3-11. DMA Interrupts
MODE
ABU (non-decrement)
ABU (non-decrement)
Multiframe
Multiframe
Either
Either
DINM
1
1
1
1
0
0
IMOD
0
1
0
1
X
X
At full buffer only
At half buffer and full buffer
At block transfer complete (DMCTRn = DMSEFCn[7:0] = 0)
At end of frame and end of block (DMCTRn = 0)
No interrupt generated
No interrupt generated
INTERRUPT
3.12.11
DMA Controller Synchronization Events
The transfers associated with each DMA channel can be synchronized to one of several events. The
DSYN bit field of the DMSEFCn register selects the synchronization event for a channel. The list of
possible events and the DSYN values are shown in Table 3-12.
Table 3-12. DMA Synchronization Events
DSYN VALUE
0000b
0001b
0010b
0011b
0100b
DMA SYNCHRONIZATION EVENT
No synchronization used
McBSP0 receive event
McBSP0 transmit event
McBSP2 receive event
McBSP2 transmit event
42
Functional Overview

TMS320VC5416GGU160 产品属性

  • 160

  • 集成电路 (IC)

  • 嵌入式 - DSP（数字式信号处理器）

  • TMS320C54x

  • 定点

  • 主机接口，McBSP

  • 160MHz

  • ROM（32 kB）

  • 256kB

  • 3.30V

  • 1.60V

  • -40°C ~ 100°C

  • 表面贴装

  • 144-LFBGA

  • 144-BGA MICROSTAR（12x12）

  • 托盘

  • 296-15829-ND - DSP STARTER KIT FOR TMS320C5416

  • 296-11660296-11660-5296-11660-5-ND

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