Mpui Access Configurations - Texas Instruments OMAP5912 Reference Manual

Multimedia processor device overview and architecture

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Registers for Controlling Channel Context

Configuration registers

(programmed by code)

MPUI Access Configurations

Direct Memory Access (DMA) Support

Figure 17 shows the registers for controlling channel context.

Automatically copied

when channel enabled

and between block transfers

in autoinitialization mode

As shown in Figure 18, the MPUI_EXCL bit in DMA_GCR determines the

relationship

MPUI_EXCL = 0, the MPUI shares memory with the channels. When

MPUI_EXCL = 1 , the MPUI cannot access external memory, but it can access

internal RAM without interruptions from the channels. When MPUI_EXCL = 1,

the DARAM port and the SARAM port operate as if all the channels were

disconnected from the service chain. See Section 4.4, Service Chain.

Working registers

(used by DMA controller)

DMA_CSDP copy

DMA_CCR copy

DMA_CICR copy

DMA_CSR copy

DMA_CSSA_L copy

DMA_CSSA_U copy

DMA_CDSA_L copy

DMA_CDSA_U copy

DMA_CEN copy

DMA_CFN copy

DMA_CDFI copy

DMA_CDEI copy

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