Texas Instruments TMS320DM357 - Manual (Page 93)

4.14 Transmit CPPI Control Register (TCPPICR)
4.15 Transmit CPPI Teardown Register (TCPPITDR)
www.ti.com Registers
The Transmit CPPI Control Register (TCPPICR) is shown in Figure 29 and described in Table 30 .
Figure 29. Transmit CPPI Control Register (TCPPICR)
31 16
Reserved
R-0
15 1 0
Reserved TCPPI_ENABLE
R-0 R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 30. Transmit CPPI Control Register (TCPPICR) Field Descriptions
Bit Field Value Description
31-1 Reserved 0 Reserved
0 TCPPI_ENABLE Transmit CPPI Enable Controls if the Transmit CPPI DMA controller is enabled. Be sure to program
the CPPI chain and set the DMA state words before enabling the DMA. Failure to initialize the DMA
before enabling could result in spurious transfers and memory corruption.
0 Transmit CPPI DMA is disabled
1 Transmit CPPI DMA is enabled
The Transmit CPPI Teardown Register (TCPPITDR) is shown in Figure 30 and described in Table 31 .
Figure 30. Transmit CPPI Teardown Register (TCPPITDR)
31 30 16
READY Reserved
R-1 R-0
15 2 1 0
Reserved CHANNEL
R-0 R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 31. Transmit CPPI Teardown Register (TCPPITDR) Field Descriptions
Bit Field Value Description
31 READY 0-1 Indicates if the Teardown register can be written
30-2 Reserved 0 Reserved
1-0 CHANNEL 0-3h Teardown Channel
Indicates the channel that is to be torn down
SPRUGH3 – November 2008 Universal Serial Bus (USB) Controller 93
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