Texas Instruments TMS320C6745 DSP - Channel Source Address Parameter (SRC); A Count;B Count Parameter (A_B_CNT); Channel Source Address Parameter (SRC) Field Descriptions; A Count;B Count Parameter (A_B_CNT) Field Descriptions

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SPRUH91D–March 2013–Revised September 2016
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Enhanced Direct Memory Access (EDMA3) Controller
16.4.1.2 Channel Source Address Parameter (SRC)
The channel source address parameter (SRC) specifies the starting byte address of the source. The SRC
is shown in Figure 16-36 and described in Table 16-13.
Figure 16-36. Channel Source Address Parameter (SRC)
31 0
SRC
R/W-x
LEGEND: R = Read only; -n = value after reset
Table 16-13. Channel Source Address Parameter (SRC) Field Descriptions
Bit Field Value Description
31-0 SRC 0-FFFF FFFFh Source address. Specifies the starting byte address of the source.
16.4.1.3 A Count/B Count Parameter (A_B_CNT)
The A count/B count parameter (A_B_CNT) specifies the number of bytes within the 1st dimension of a
transfer and the number of arrays of length ACNT. The A_B_CNT is shown in Figure 16-37 and described
in Table 16-14.
Figure 16-37. A Count/B Count Parameter (A_B_CNT)
31 16
BCNT
R/W-x
15 0
ACNT
R/W-x
LEGEND: R/W = Read/Write; -n = value after reset; -x = value is indeterminate after reset
Table 16-14. A Count/B Count Parameter (A_B_CNT) Field Descriptions
Bit Field Value Description
31-16 BCNT 0-FFFFh B count. Unsigned value specifying the number of arrays in a frame, where an array is ACNT bytes. Valid
values range from 1 to 65 535.
15-0 ACNT 0-FFFFh A count for 1st Dimension. Unsigned value specifying the number of contiguous bytes within an array (first
dimension of the transfer). Valid values range from 1 to 65 535.