PM3386-BI 查看數據表（PDF） - PMC-Sierra

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PM3386-BI

DUAL GIGABIT ETHERNET CONTROLLER

PMC-Sierra 

RELEASED

DATASHEET

PMC-1991129

ISSUE 7

PM3386

DUAL GIGABIT ETHERNET CONTROLLER

7 DESCRIPTION

The PM3386 is a monolithic integrated circuit that implements a two port full

duplex 1000 Mbit/s Gigabit Ethernet MAC data transport device. The PM3386

provides line interface connectivity provided by an on-chip SERDES and GMII

functions and data transport to the up stream device via the industry standard

POS-PHY Level 3 interface.

Serializer-Deserializer (SERDES)

The PM3386 has two internal serializer-deserializer transceivers. The SERDES

are IEEE 802.3-1998 Gigabit Ethernet compatible supporting gigabit data

transfer flows. The SERDES is based on the X3T11 10 Bit specification. The

PM3386 receives and transmits Gigabit Ethernet streams using a bit serial

interface for direct connection to optical transceiver devices. The SERDES

performs data recovery and serial to parallel conversion for connection to the

Enhanced Gigabit Media Access Control block.

Gigabit Media Independent Interface (GMII)

For Gigabit Ethernet over copper support, the PM3386 provides dual standard

GMII interfaces. A copper Gigabit Ethernet physical layer device can be

connected to the PM3386 via this interface.

Enhanced Gigabit Media Access Control (EGMAC)

The Enhanced Gigabit Media Access Control (EGMAC) block provides an

integrated IEEE 802.3-1998 Gigabit Ethernet Media Access Control (MAC)

supporting high performance 1000Base capability. The EGMAC has line side

interfaces for connection to internal (SERDES) and external Gigabit PHY via

GMII on each Gigabit Ethernet port. The Enhanced Gigabit MAC (EGMAC)

incorporates all of the Gigabit Ethernet MAC functions including Auto-

Negotiation, statistics, and the MAC Control Sub-layer that adheres to IEEE

802.3-1998 providing support for PAUSE control frames. The EGMAC provides

basic frame integrity checks to validate incoming frames. The EGMAC also

provides simple line rate ingress address filtering support via 8 exact-match MAC

address and VID unicast filters, one 64-bin hash-based multicast filter, and the

ability to filter or accept matched frames on a per instance programmable

fashion. All inquires for filtering are done at line rate with no system latency

introduced for look up cycles.

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

12

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