參數(shù)資料
型號(hào)： MVTX2601AG
廠商： ZARLINK SEMICONDUCTOR INC
元件分類(lèi)： 網(wǎng)絡(luò)接口
英文描述： Unmanaged 24-Port 10/100 Mbps Ethernet Switch
中文描述： DATACOM, LAN SWITCHING CIRCUIT, PBGA553
封裝： 37.50 X 37.50 MM, 2.33 MM HEIGHT, MS-034, HSBGA-553
文件頁(yè)數(shù)： 9/91頁(yè)
文件大?。?/td> 686K
代理商： MVTX2601AG
MVTX2601
Data Sheet
9
Zarlink Semiconductor Inc.
1.0 Block Functionality
1.1 Frame Data Buffer (FDB) Interfaces
The FDB interface supports pipelined synchronous burst SRAM (SBRAM) memory at 100 MHz. To ensure a non-
blocking switch, one memory domain with a 64 bit wide memory bus is required. At 100 MHz, the aggregate
memory bandwidth is 6.4 Gbps, which is enough to support 24 10/100 Mbps.
The Switching Database is also located in the external SBRAM; it is used for storing MAC addresses and their
physical port number.
1.2 10/100 MAC Module (RMAC)
The 10/100 Media Access Control module provides the necessary buffers and control interface between the Frame
Engine (FE) and the external physical device (PHY). The MVTX2601 has two interfaces, RMII or Serial (only for
10 M). The 10/100 MAC of the MVTX2601 device meets the IEEE 802.3 specification. It is able to operate in either
Half or Full Duplex mode with a back pressure/flow control mechanism. In addition, it will automatically retransmit
upon collision for up to 16 total transmissions. The PHY addresses for 24 10/100 MAC are from 08h to 1Fh.
1.3 Configuration Interface Module
The MVTX2601 supports a serial and an I
2
C interface, which provides an easy way to configure the system. Once
configured, the resulting configuration can be stored in an I
2
C EEPROM.
1.4 Frame Engine
The main function of the frame engine is to forward a frame to its proper destination port or ports. When a frame
arrives, the frame engine parses the frame header (64 bytes) and formulates a switching request, sent to the
search engine to resolve the destination port. The arriving frame is moved to the FDB. After receiving a switch
response from the search engine, the frame engine performs transmission scheduling based on the frame’s priority.
The frame engine forwards the frame to the MAC module when the frame is ready to be sent.
1.5 Search Engine
The Search Engine resolves the frame’s destination port or ports according to the destination MAC address (L2). It
also performs MAC learning, priority assignment and trunking functions.
1.6 LED Interface
The LED interface provides a serial interface for carrying 24 port status signals.
1.7 Internal Memory
Several internal tables are required and are described as follows:
Frame Control Block (FCB) - Each FCB entry contains the control information of the associated frame
stored in the FDB, e.g., frame size, read/write pointer, transmission priority, etc.
MCT Link Table - The MCT Link Table stores the linked list of MCT entries that have collisions in the
external MAC Table. The external MAC table is located in the FDB Memory.
Note:
the external MAC table is located in the external SBRAM Memory.
相關(guān)PDF資料
PDF描述
MVTX2602 Managed 24 Port 10/100 Mbps Ethernet Switch
MVTX2602AG Managed 24 Port 10/100 Mbps Ethernet Switch
MVTX2603 Unmanaged 24-Port 10/100 Mb + 2-Port 1 Gb Ethernet Switch
MVTX2603AG Unmanaged 24-Port 10/100 Mb + 2-Port 1 Gb Ethernet Switch
MVTX2604 Managed 24-Port 10/100 Mb + 2 Port 1 Gb Ethernet Switch
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MVTX2601AG2 制造商:Microsemi Corporation 功能描述:
MVTX2602 制造商:ZARLINK 制造商全稱(chēng):Zarlink Semiconductor Inc 功能描述:Managed 24 Port 10/100 Mbps Ethernet Switch
MVTX2602A 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:MVTX260x Port Mirroring
MVTX2602AG 制造商:ZARLINK 制造商全稱(chēng):Zarlink Semiconductor Inc 功能描述:Managed 24 Port 10/100 Mbps Ethernet Switch
MVTX2602AG2 制造商:Microsemi Corporation 功能描述:
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