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Standalone (SA) Mode www.ti.com
Figure 5. Systematic/Parity Data for Rates 1/2, 1/3, 1/4, 1/5, and 3/4
63:62 61:56 55:50 49:44 43:38 37:32 31:30 29:24 23:18 17:12 11:6 5:0
RSVD SP9 SP8 SP7 SP6 SP5 RSVD SP4 SP3 SP2 SP1 SP0
Figure 6. EN = 1 (Little-Endian Mode) Rate = 1/2
Word Word
N + 1 N
SP9 SP8 SP7 SP6 SP5 SP4 SP3 SP3 SP3 SP0
0 A1' 0 0 X1 0 0 0 0 X0
Word Word
N + 3 N + 2
SP9 SP8 SP7 SP6 SP5 SP4 SP3 SP3 SP3 SP0
0 A3' 0 0 X3 0 0 0 0 X2
Figure 7. EN = 0 (Big-Endian Mode) Rate = 1/2
Word Word
N N + 1
SP4 SP3 SP2 SP1 SP0 SP9 SP8 SP7 SP6 SP5
0 0 0 A0 X0 0 A1' 0 0 X1
Word Word
N + 2 N + 3
SP4 SP3 SP2 SP1 SP0 SP9 SP8 SP7 SP6 SP5
0 0 0 A2 X2 0 A3' 0 0 X3
Figure 8. 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 9. 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 10. 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
TMS320C6457 Turbo-Decoder Coprocessor 214 SPRUGK1 – March 2009
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