SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
Channel decoding of voice and low bit-rate data channels found in cellular standards such as 2.5G, 3G and WiMAX require the decoding of convolutional encoded data. The Viterbi-decoder coprocessor 2 (VCP2) performs Viterbi-decoding for IS2000 and 3GPP wireless standards, and performs forward error correction for 2G and 3G wireless systems. The VCP can support 1941 12.2 Kbps class A 3G voice channels running at 333 MHz and offers a very cost effective and synergistic solution when combined with Texas Instruments (TI) DSPs. (for more information, see Section 32.1.1, VCP Features).
The device provides two instances of the VCP module respectively VCP1 and VCP2.
Figure 32-1 is an overview of the VCP in the device.