Dsp Dma Controller Synchronization Events For Omap5912; Dsp Gdma Handler (Omap5912 Only) - Texas Instruments OMAP5910 Reference Manual

DSP DMA
Table 51. DSP DMA Controller Synchronization Events for OMAP5912†
DMA Event
DMA_EVT1
DMA_EVT2
DMA_EVT3
DMA_EVT4
DMA_EVT5
DMA_EVT6
DMA_EVT7
DMA_EVT8
DMA_EVT9
DMA_EVT10
DMA_EVT11
DMA_EVT12
DMA_EVT13
DMA_EVT14
DMA_EVT15
DMA_EVT16
DMA_EVT17
DMA_EVT18
DMA_EVT19
†
This table lists the default mapping for the DMA synchronization events after a DSP subsystem reset. The source for each
synchronization event can be changed through the GDMA Handler.
‡
After a DSP subsystem reset, DMA_EVT7 is not associated with any particular peripheral request. You can use the Functional
Multiplexing DSP DMA Register B to associate a peripheral request (from Table 52) with this DMA synchronization event.
7.2.13

DSP GDMA Handler (OMAP5912 Only)

7.2.13.1 Operation
146 DSP Subsystem
Generated By (On OMAP5912):
MCSI1 Transmit Request (MCSI1TX)
MCSI1 Receive Request (MCSI1RX)
MCSI2 Transmit Request (MCSI2TX)
MCSI2 Receive Request (MCSI2RX)
MMC/SDIO2 Transmit Request
(MMC/SDIO2TX)
MMC/SDIO2 Receive Request (MMC/SDIO2RX) 00110b
‡
Free
McBSP1 Transmit Request (McBSP1TX)
McBSP1 Receive Request (McBSP2RX)
McBSP3 Transmit Request (McBSP3TX)
McBSP3 Receive Request (McBSP3RX)
UART1 Transmit Request (UART1TX)
UART1 Receive Request (UART1RX)
UART2 Transmit Request (UART2TX)
UART2 Receive Request (UART2RX)
I2C Receive Request (I2CRX)
I2C Transmit Request (I2CTX)
UART3 Transmit Request (UART3TX)
UART3 Receive Request (UART3RX)
As mentioned in section 7.2.12.4, the source for a synchronization event can
be changed on the OMAP5912 DSP DMA. Altogether, the DSP public
peripherals and MPU/DSP shared peripherals can generate up to 28 different
peripheral requests. The OMAP5912 DSP GDMA Handler acts as a crossbar
which maps these incoming peripheral requests to the 19 DSP DMA
synchronization events (see Figure 75).
Setting For SYNC Bits
00001b
00010b
00011b
00100b
00101b
00111b
01000b
01001b
01010b
01011b
01100b
01101b
01110b
01111b
10000b
10001b
10010b
10011b
SPRU890A