參數資料
| 型號： | KSZ8873FLLI |
| 廠商： | Micrel Inc |
| 文件頁數： | 51/115頁 |
| 文件大小： | 0K |
| 描述： | IC ETHERNET SWITCH 3PORT 64LQFP |
| 產品培訓模塊： | KSZ8873 Ethernet Switches |
| 標準包裝： | 160 |
| 控制器類型： | 以太網開關控制器 |
| 接口： | MII |
| 電源電壓： | 1.8V，2.5V，3.3V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 64-LQFP |
| 供應商設備封裝： | 64-LQFP（10x10） |
| 包裝： | 托盤 |
| 其它名稱： | 576-3632 KSZ8873FLLI-ND |
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Micrel, Inc.
KSZ8873MLL/FLL/RLL
September 20, 2013
40
Revision 1.6
Table 13. Tail Tag Rules
Ingress to Port 3 (Host -> KSZ8873MLL/FLL/RLL)
Bit [1,0]
Destination Port
0,0
Normal (Address Look up)
0,1
Port 1
1,0
Port 2
1,1
Port 1 and 2
Bit [3,2]
Frame Priority
0,0
Priority 0
0,1
Priority 1
1,0
Priority 2
1,1
Priority 3
Egress from Port 3 (KSZ8873MLL/FLL/RLL->Host)
Bit [0]
Source Port
0
Port 1
1
Port 2
IGMP Support
For Internet Group Management Protocol (IGMP) support in layer 2, the KSZ8873MLL/FLL/RLL provides two
components, IGMP snooping and IGMP send-back to the subscribed port.
IGMP Snooping
The KSZ8873MLL/FLL/RLL traps IGMP packets and forwards them only to the processor (port 3). The IGMP packets are
identified as IP packets (either Ethernet IP packets, or IEEE 802.3 SNAP IP packets) with IP version = 0x4 and protocol
version number = 0x2.
IGMP Send-Back to the Subscribed Port
Once the host responds the received IGMP packet, the host should knows the original IGMP ingress port and send back
the IGMP packet to this port only, otherwise this IGMP packet will be broadcasted to all port to downgrade the
performance.
Enable the tail tag mode, the host will know the IGMP packet received port from tail tag bits [0] and can send back the
response IGMP packet to this subscribed port by setting the bits [1,0] in the tail tag. Enable “Tail tag mode” by setting
Register 3 bit 6. The tail tag will be removed automatically when the IGMP packet is sent out from the subscribed port.
Port Mirroring Support
KSZ8873MLL/FLL/RLL supports “Port Mirroring” comprehensively as:
“receive only” mirror on a port
All the packets received on the port are mirrored on the sniffer port. For example, port 1 is programmed to be “receive
sniff” and port 3 is programmed to be the “sniffer port”. A packet received on port 1 is destined to port 2 after the
internal lookup. The KSZ8873MLL/FLL/RLL forwards the packet to both port 2 and port 3. The KSZ8873MLL/FLL/RLL
can optionally even forward “bad” received packets to the “sniffer port”.
“transmit only” mirror on a port
All the packets transmitted on the port are mirrored on the sniffer port. For example, port 1 is programmed to be
“transmit sniff” and port 3 is programmed to be the “sniffer port”. A packet received on port 2 is destined to port 1 after
the internal lookup. The KSZ8873MLL/FLL/RLL forwards the packet to both port 1 and port 3.
“receive and transmit” mirror on two ports
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相關代理商/技術參數 |
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| KSZ8873MLL | 功能描述:以太網 IC 3-Port Fast Ethernet Switch with 1x MII Interface - Lead Free RoHS:否 制造商:Micrel 產品:Ethernet Switches 收發(fā)器數量:2 數據速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray |
| KSZ8873MLL AM | 功能描述:以太網 IC 3-Port 10/100 Ethernet Switch with 1x MII Interface (Automotive Grade, Lead Free) RoHS:否 制造商:Micrel 產品:Ethernet Switches 收發(fā)器數量:2 數據速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray |
| KSZ8873MLL AM TR | 功能描述:以太網 IC 3-Port 10/100 Ethernet Switch with 1x MII Interface (Automotive Grade, Lead Free) RoHS:否 制造商:Micrel 產品:Ethernet Switches 收發(fā)器數量:2 數據速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray |
| KSZ8873MLL/8863MLL | 制造商:Micrel Inc 功能描述:EVAL BOARD |
| KSZ8873MLL_09 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Integrated 3-Port 10/100 Managed Switch with PHYs |
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