參數(shù)資料
型號: MVTX2604AG
廠商: ZARLINK SEMICONDUCTOR INC
元件分類: 網(wǎng)絡(luò)接口
英文描述: Managed 24-Port 10/100 Mb + 2 Port 1 Gb 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
文件頁數(shù): 23/173頁
文件大?。?/td> 2097K
代理商: MVTX2604AG
MVTX2604
Data Sheet
25
Zarlink Semiconductor Inc.
4.4 Memory Requirements
To speed up searching and decrease memory latency, the external MAC address database is duplicated in both
memory banks. To support 64 K MAC address, 4 MB memory is required. When VLAN support is enabled, 512
entries of the MAC address table are used for storing the VLAN ID at VLAN Index Mapping Table.
Up to 2 K Ethernet frame buffers are supported and they will use 3 MB of memory. Each frame uses 1536 bytes.
The maximum system memory requirement is 4 MB. If less memory is desired, the configuration can scale down.
Memory Configuration
Memory Map
Bank A
Bank B
Tag based VLAN
Frame Buffer
Max MAC Address
1 M
1 M
Disable
1 K
32 K
1 M
1 M
Enable
1 K
31.5 K
2 M
2 M
Disable
2 K
64 K
2 M
2 M
Enable
2 K
63.5 K
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