The MSC7120 GPON is a system-on-chip (SoC) solution for broadband passive optical network termination (ONT) applications. It integrates a GPON TC/MAC, StarCore®™
DSP, Gigabit Ethernet TC/MACs and a clock and data recovery (CDR) unit to a core built on Power Architecture™ technology. The MSC7120 GPON provides a highly integrated
solution designed to minimize ONT costs through silicon integration and a reduction of external components.
The MSC7120 GPON SoC device is based on Our e300 processor platform built on Power Architecture technology, which provides the foundation for the company's
PowerQUICC®™ II Pro communications processor family. The MSC7120 GPON device's e300 core operates at 266 MHz and includes a 16 KB instruction cache and a 16 KB data cache. The SoC integrates a DDR 1/2 memory controller, a PowerQUICC II-compatible local bus controller (LBIU), two 10/100/1000 Ethernet controllers, a dual universal asynchronous receiver/transmitter (DUART), I2C, a serial peripheral interface (SPI), an interrupt controller and parallel general-purpose input/outputs (GPIOs). In addition, the SoC integrates an SC1400 DSP based on StarCore technology for enabling voice functions.
The PON subsystem is based on a GPON layer termination device as specified in ITU-T G.984. The PON subsystem integrates the TC/MAC function as well as the clock and data recovery (CDR) function; it further supports Advanced Encryption Standard (AES), Forward Error Correction (FEC) and dynamic bandwidth reporting per the FSAN requirements. A hardware bridge ensures that a high-throughput data path is available with minimum intervention required by the e300 core. Further, the PON subsystem leverages Our leadership in B-PON products and mixed-signal technology.
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