PONMAC芯片BL介绍.doc

PON MAC芯片（DS-BL2000）介绍
1、主要接口

Dual Fast Ethernet 10/100 (IEEE )
Gigabit Ethernet 10/100/1000 (IEEE )
Native TDM GEM Interface
Peripheral Bus Interface (PBI) for glueless interface to common industry

Integrated 2488/1244Mbps CDR
Glueless interface to BPON and GPON Multi-Source Agreement (MSA) Small Form Factor (SFF) transceivers
TDM接口
TDM Interface
Native TDM over GEM via an companion FPGA
2、以太网MAC

Fast Ethernet 10/100 (IEEE )
MII or dual RMII MAC Interface
Half and full duplex support
Gigabit Ethernet 10/100/1000 (IEEE )
GMII MAC Interface
Configurable hardware flow control
IEEE VLAN tagging
、GPON MAC
The GPON MAC supports Ethernet packet and TDM payload transport over the PON interface through GPON Encapsulation Mode (GEM). It supports ITU-T set of standards with extended functionalities
Compliant to
Multiple data rates
Configurable AES encryption on DS payload
Configurable FEC on US and DS payload
Dedicated connections for In-band management can be directed to CPU
、BPON MAC
BroadLight’s ITU-T MAC is industry proven and FSAN interoperable.
compliant
(OMCI) compliant
(DBA) compliant
Multiple data rates
Queue manager
32 VP/VC group filters
ATM cell processing with end-to-end OAM per
Derives clock from recovered network clock
、CDR, SerDes
PCML TX and LVPECL RX interface levels
Variable Data rates
Selectable reference clock frequency 78 MHz or 155 MHz
Integrated on-chip 50Ω termination resistor in the transmitter and in the receiver
3、Cell/Packet Processor
信源、包处理引蟼是为了优化GPON或者BPON数据平台流处理器。信源、包处理引蟼包括：AAL5-SAR，AAL2-SAR，-bridge学习，ATM整形和策略。包含核心处理和硬件加速器，在时钟频率为200MHz可达到300K packets/s。

Supports up to 100 Mbps full duplex sustained Ethernet traffic with 64-byte packets
Support for 512 filtering table entries
Support for , and