MC92053

The primary application of the MC92053 is to provide TC-sublayer processing functions for a network device, e.g., an optical network unit (ONU), in an FTTC network. Figure 3 shows the location of the network device within an FTTC network. Figure 4 shows a generic ONU architecture using the MC92053. The MC92053 uses an external memory for convolutional interleaving of the downstream data. If interleaving is not performed, the external memory is not uired.

The MC92053 implements four copies of the TC sublayer of the DAVIC asymmetrical FTTC PHY specification for network devices. That key functional blocks are described in the paragraphs which follow.