Texas Instruments TMS320C6457 Manual de usuario Pagina 23

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Shared-Processing (SP) Mode
Figure 23. EN = 1 (Little-Endian Mode) Rate = 1/3
Word Word
N + 1 N
SP9 SP8 SP7 SP6 SP5 SP4 SP3 SP2 SP1 SP0
0 A1' 0 A1 X1 0 A0' 0 A0 X0
Word Word
N + 3 N + 2
SP9 SP8 SP7 SP6 SP5 SP4 SP3 SP2 SP1 SP0
0 A3' 0 A3 X3 0 A2' 0 A2 X2
Figure 24. EN = 0 (Big-Endian Mode) Rate = 1/3
Word Word
N N + 1
SP4 SP3 SP2 SP1 SP0 SP9 SP8 SP7 SP6 SP5
0 A0' 0 A0 X0 0 A1' 0 A1 X1
Word Word
N + 2 N + 3
SP4 SP3 SP2 SP1 SP0 SP9 SP8 SP7 SP6 SP5
0 A2' 0 A2 X2 0 A3' 0 A3 X3
Figure 25. EN = 1 (Little-Endian Mode) Rate = 1/4
Word Word
N + 1 N
SP9 SP8 SP7 SP6 SP5 SP4 SP3 SP2 SP1 SP0
B1' A1' 0 A1 X1 B0' 0 B0 A0 X0
Word Word
N + 3 N + 2
SP9 SP8 SP7 SP6 SP5 SP4 SP3 SP2 SP1 SP0
B3' A3' 0 A3 X3 B2' 0 B2 A2 X2
Figure 26. EN = 0 (Big-Endian Mode) Rate = 1/4
Word Word
N N + 1
SP4 SP3 SP2 SP1 SP0 SP9 SP8 SP7 SP6 SP5
B0' 0 B0 A0 X0 B1' A1' 0 A1 X1
Word Word
N + 2 N + 3
SP4 SP3 SP2 SP1 SP0 SP9 SP8 SP7 SP6 SP5
B2' 0 B2 A2 X2 B3' A3' 0 A3 X3
Figure 27. EN = 1 (Little-Endian Mode) Rate = 1/5
Word Word
N + 1 N
SP9 SP8 SP7 SP6 SP5 SP4 SP3 SP2 SP1 SP0
B1' A1' B1 A1 X1 B0' A0' B0 A0 X0
Word Word
N + 3 N + 2
SP9 SP8 SP7 SP6 SP5 SP4 SP3 SP2 SP1 SP0
B3' A3' B3' A3 X3 B2' A2' B2 A2 X2
SPRUGK1 March 2009 TMS320C6457 Turbo-Decoder Coprocessor 2 23
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