Bit Raw Data Fifo Packing - Texas Instruments TMS320C64x DSP Reference Manual

Raw Data Capture Mode
The 8-bit raw-data mode stores all data in a single FIFO. Four samples are
packed into each word as shown in Figure 3–17.
Figure 3–17. 8-Bit Raw Data FIFO Packing
VCLKINA / VCLKINB
VDIN[9–2] / VDIN[19–12]
63 5655
Raw 15 Raw 14
Raw 7 Raw 6
Raw FIFO
63 5655
Raw 8 Raw 9
Raw 0 Raw 1
Raw FIFO
The 10-bit raw data mode stores all data into a single FIFO. Two samples are
packed into each word with zero or sign extension as shown in Figure 3–18.
Figure 3–18. 10-Bit Raw Data FIFO Packing
VCLKINA / VCLKINB
VDIN[9–0] / VDIN[19–10]
Raw 0
63 58 57
0 / SE Raw 15
0 / SE Raw 11
0 / SE Raw 7
0 / SE Raw 3
Y FIFO
63 58 57
0 / SE Raw 12
0 / SE Raw 8
0 / SE Raw 4
0 / SE Raw 0
Y FIFO
3-34 Video Capture Port
Raw 0 Raw 1 Raw 2 Raw 3 Raw 4
4847 4039 32
Raw 13 Raw 12
Raw 5 Raw 4
Little-Endian Packing
4847 4039 32
Raw 10 Raw 11
Raw 2 Raw 3
Big-Endian Packing
Raw 1 Raw 2 Raw 3 Raw 4 Raw 5
48 47 42 41 32 31
0 / SE Raw 14
0 / SE Raw 10
0 / SE Raw 6
0 / SE Raw 2
Little-Endian Packing
48 47 42 41 32 31
0 / SE Raw 13
0 / SE Raw 9
0 / SE Raw 5
0 / SE Raw 1
Big-Endian Packing
Raw 5 Raw 6 Raw 7 Raw 8 Raw 9
31 2423 1615
Raw 11 Raw 10 Raw 9
Raw 3 Raw 2 Raw 1
31 2423 1615
Raw 12 Raw 13 Raw 14
Raw 4 Raw 5 Raw 6
Raw 6 Raw 7 Raw 8 Raw 9 Raw 10
26 25 16 15
0 / SE Raw 13 0 / SE
0 / SE Raw 9 0 / SE
0 / SE Raw 5 0 / SE
0 / SE Raw 1 0 / SE
26 25 16 15
0 / SE Raw 14 0 / SE
0 / SE Raw 10 0 / SE
0 / SE Raw 6 0 / SE
0 / SE Raw 2 0 / SE
Raw 10 Raw 11
8 7 0
Raw 8
Raw 0
8 7 0
Raw 15
Raw 7
Raw 11
10 9 0
Raw 12
Raw 8
Raw 4
Raw 0
10 9 0
Raw 15
Raw 11
Raw 7
Raw 3
SPRU629