Texas Instruments TMS320C6457 Bedienungsanleitung PDF herunterladen (Seite 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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