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Figure 16. Shared-Processing (SP) Mode Block Diagram
A for MAP 1 and A’ for MAP2
B for MAP1 and B’ for MAP2 (only rate 1/4)
X for MAP1 or X’ for MAP2
EXT1: extrinsics after MAP1
EXT2: extrinsics after MAP2
MAP |
decoder |
unit |
EXT1,2 |
The
1.The first subframe (required) will have a opmode of 1. The middle subframe(s) (optional) have a opmode of 2. The last subframe (required) will have a opmode of 3.
2.The size of all the subframes (except the last subframe) must be integer divisible by 256 and Max sub frame size = 20480 = 80*256.
3.The first and middle subframes should have the same size. The last subframe should be approximately the same size as the other subframes.
4.The last subframe size must be at least 129.
TMS320C6457 | 19 |