Texas Instruments OMAP5912 Reference Manual page 756

DSP DMA
Figure 20. Service Chain Applied to Three DMA Ports
Configuration for
the service chains
MPUI
Write access
Read access
Channel 4
FIFO buffer
Write access
Channel 2
FIFO buffer
Write access
Channel 1
FIFO buffer
Read access
Read access
132 Direct Memory Access (DMA) Support
High-priority: 0, 2, 5
Low-priority: 1, 3, 4, MPUI
DARAM port: Only used by channel 2, channel 4, and MPUI
Ch 0
External memory port: Only used by channel 1, channel 4, and MPUI
Ch 0
Peripherals port: Only used by channel 1 and channel 2
Ch 0
Note: The MPUI can never access the peripherals port.
Disabled: 0, 3, 5
Enabled: 1, 2, 4
Ch 2
Ch 1 Ch 3
Ch 2
Ch 1 Ch 3
Ch 2
Ch 1 Ch 3
MPUI shares with channels
Ch 5
Ch 4 MPUI
Ch 5
MPUI
Ch 4
Ch 5
Ch 4 MPUI
SPRU755B