參數(shù)資料
型號(hào)： KSZ8842-PMBL AM TR
廠商： Micrel Inc
文件頁數(shù)： 70/119頁
文件大?。?/td> 0K
描述： IC ETHERNET SW 2PORT 100LFBGA
標(biāo)準(zhǔn)包裝： 1,000
控制器類型： 以太網(wǎng)開關(guān)控制器
接口： PCI
電源電壓： 3.1 V ~ 3.5 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 100-LFBGA
供應(yīng)商設(shè)備封裝： 100-LFBGA
包裝： 帶卷 (TR)
Micrel, Inc.
KSZ8842-PMQL/PMBL
October 2007
54
M9999-100207-1.5
Switch Global Control Register 2 (Offset 0x0404): SGCR2
This register contains the global control for the switch function.
Bit
Default
R/W
Description
15
0
RW
802.1Q VLAN enable
1 = 802.1Q VLAN mode is turned on. VLAN table needs to set up before
the operation.
0 = 802.1Q VLAN is disabled.
14
0
RW
IGMP snoop enable
1 = IGMP snoop is enabled. All the IGMP packets will be forwarded to the
host port.
0 = IGMP snoop is disabled.
13
0
RW
IPv6 MLD snooping enable
1 = enable IPv6 MLD snooping
12
0
RW
IPv6 MLD snooping option
1 = enable IPv6 MLD snooping option.
11
0
RW
Priority Scheme select
0 = always TX higher priority packets first
1 = Weighted Fair Queuing enable. When all 4 queues has packets
waiting to TX, the bandwidth allocation is q3:q2:q1:q0 = 8:4:2:1. If any
queues is empty, the highest non-empty queue will get one more
weighting. For example, if q2 is empty, q3:q2:q1:q0 will become (8+1): 0
:2 : 1.
10 – 9
0
RW
Reserved.
For factory test purposes only. Always write 0.
8
0
RW
Sniff mode select
1 = will do RX AND TX sniff (both source port and destination port need to
match)
0 = will do RX OR TX sniff (Either source port or destination port needs to
match). This is the mode used to implement rx only sniff.
7
1
RW
Unicast port-VLAN mismatch discard
1 = all packets can not cross VLAN boundary
0 = unicast packets (excluding unknown/multicast/broadcast) can cross
VLAN boundary
6
1
RW
Multicast storm protection disable
1 = “Broadcast Storm Protection” does not include multicast packets. Only
DA = FFFFFFFFFFFF packets will be regulated.
0 = “Broadcast Storm Protection” includes DA = FFFFFFFFFFFF and
DA[40] = 1 packets.
5
1
RW
Back pressure mode
1 = carrier sense based backpressure is selected
0 = collision based backpressure is selected
4
1
RW
Flow control and back pressure fair mode
1 = fair mode is selected. In this mode, if a flow control port and a non-
flow control port talk to the same destination port, packets from the non-
flow control port may be dropped. This is to prevent the flow control port
from being flow controlled for an extended period of time.
0 = in this mode, if a flow control port and a non-flow control port talk to
the same destination port, the flow control port will be flow controlled.
This may not be “fair” to the flow control port.
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KSZ8842-PMQLI IC ETHERNET SW 2PORT PCI 128PQFP
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
KSZ8842-PMBL-EVAL 功能描述:以太網(wǎng)開發(fā)工具 2+1 Port 10/100 Ethernet Switch with 32b/33MHz PCI Interface (BGA Version) Eval Board RoHS:否 制造商:Micrel 產(chǎn)品:Evaluation Boards 類型:Ethernet Transceivers 工具用于評(píng)估:KSZ8873RLL 接口類型:RMII 工作電源電壓:
KSZ8842-PMBL-TR 功能描述:Ethernet Switch 10/100 Base-T/TX PHY PCI Interface 100-LFBGA (9x9) 制造商:microchip technology 系列:- 包裝:剪切帶（CT） 零件狀態(tài):停產(chǎn) 協(xié)議:以太網(wǎng) 功能:開關(guān) 接口:PCI 標(biāo)準(zhǔn):10/100 Base-T/TX PHY 電壓 - 電源:3.1 V ~ 3.5 V 電流 - 電源:122mA 工作溫度:-40°C ~ 85°C 封裝/外殼:100-LFBGA 供應(yīng)商器件封裝:100-LFBGA（9x9） 標(biāo)準(zhǔn)包裝:1
KSZ8842-PMQL 功能描述:以太網(wǎng) IC 2-Port Ethernet Switch/Repeater + 32-bit/33MHz PCI bus interface(Lead Free) RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)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
KSZ8842-PMQL-EVAL 功能描述:以太網(wǎng)開發(fā)工具 KSZ8842-PMQL Evaluation Board RoHS:否 制造商:Micrel 產(chǎn)品:Evaluation Boards 類型:Ethernet Transceivers 工具用于評(píng)估:KSZ8873RLL 接口類型:RMII 工作電源電壓:
KSZ8842-PMQLI 功能描述:以太網(wǎng) IC 2-Port Ethernet Switch/Repeater + 32-bit/33MHz PCI bus interface, Ind Temp (Lead Free) RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)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
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