參數(shù)資料
型號(hào)： MVTX2602AG
廠商： ZARLINK SEMICONDUCTOR INC
元件分類： 網(wǎng)絡(luò)接口
英文描述： Managed 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
文件頁數(shù)： 23/147頁
文件大?。?/td> 924K
代理商： MVTX2602AG
MVTX2602
Data Sheet
23
Zarlink Semiconductor Inc.
5.3.3 Aging
Aging time is controlled by register 400h and 401h.
The aging module scans and ages MCT entries based on a programmable “age out” time interval. As we indicated
earlier, the search module updates the source MAC address and VLAN port association timestamps for each
frame it processes. When an entry is ready to be aged, the entry is removed from the table,and a “Delete MAC
Address” message is sent to inform the CPU.
Supported MAC entry types are: dynamic, static, source filter, destination filter, IP multicast, source and
destination filter and secure MAC address. Only dynamic entries can be aged; all others are static. The MAC entry
type is stored in the “status” field of the MCT data structure.
5.3.4 VLAN Table
The table below provides a mapping from VLAN ID to VLAN index. It is maintained by system software and is
checked by the hardware search engine for every incoming frame. This table has 4 K entries and is stored in
external SRAM. It is organized as 512
×
8 entries (total of 4 K VLAN indexes) as shown. Each VLAN index is 8
bits.
Each VIX represents the mapping result from the associated VLAN ID (VLANID = 0x004 is mapped to VIX4).
Unused VLAN ID’s have their corresponding VIX programmed to hexadecimal 00. Used VLAN ID’s have their
corresponding VIX programmed to hexadecimal 01 through FF. In other words, 255 VLAN’s are supported. The
VIX value is a pointer to the entries in the VLAN Index port association table (internal memory).
The VLAN Index port association table is used by both software and hardware. It contains 256 entries. Each
entry has 27 fields, such that each field represents the port status of that particular VLAN.
VIX7
VIX6
VIX5
VIX4
VIX3
VIX2
VIX1
VIX0
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
VIX4095
VIX4094
VIX4093
VIX4092
VIX4091
VIX4090
VIX4089
VIX4088
Table 1 - VLAN Index Mapping Table
Port
Not
Used
G1
G0
CPU
P23
P22
……
P3
P2
P1
P0
Bit
63 to 54
53 52
51 50
49 48
47 46
45 44
7 6
5 4
3 2
1 0
E
N
T
R
I
E
S
0
1
:
:
255
Table 2 - VLAN Index Port Association Table
相關(guān)PDF資料
PDF描述
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
MVTX2604AG Managed 24-Port 10/100 Mb + 2 Port 1 Gb Ethernet Switch
MVTX2801 Unmanaged 4-Port 1000 Mbps Ethernet Switch
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MVTX2602AG2 制造商:Microsemi Corporation 功能描述:
MVTX2603 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Unmanaged 24-Port 10/100 Mb + 2-Port 1 Gb Ethernet Switch
MVTX2603A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Unmanaged 24 port 10/100Mb + 2 port 1Gb Ethernet switch
MVTX2603AG 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Unmanaged 24-Port 10/100 Mb + 2-Port 1 Gb Ethernet Switch
MVTX2603AG2 制造商:Microsemi Corporation 功能描述:
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