參數(shù)資料
型號(hào)： KSZ8862-16MQL-FX
廠商： Micrel Inc
文件頁(yè)數(shù)： 94/125頁(yè)
文件大?。?/td> 0K
描述： IC SWITCH ETH 2P 16BIT 128PQFP
標(biāo)準(zhǔn)包裝： 66
系列： KSZ8862
控制器類型： 以太網(wǎng)開(kāi)關(guān)控制器
接口： PCI
安裝類型： 表面貼裝
封裝/外殼： 128-BFQFP
供應(yīng)商設(shè)備封裝： 128-PQFP（14x20）
包裝： 托盤(pán)
產(chǎn)品目錄頁(yè)面： 1081 (CN2011-ZH PDF)
配用： 576-1638-ND - BOARD EVALUATION KSZ8862-10FL
576-1637-ND - BOARD EVALUATION KSZ8862-100FX
其它名稱： 576-3271
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Micrel, Inc.
KSZ8862-16/32MQL
April 2007
70
M9999-040407-3.0
Bank 32 Switch Global Control Register 2 (0x04): 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 must be set up before the operation.
0 = 802.1Q VLAN is disabled.
14
0
RW
IGMP Snoop Enable On Switch Host port
1 = IGMP snoop is enabled.
All the IGMP packets are forwarded to the Switch 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 Queueing enabled. When all four queues have packets waiting to transmit, the
bandwidth allocation is q3:q2:q1:a0 = 8:4:2:1.
If any queues are empty, the highest non-empty queue gets one more weighting. For example, if q2
is empty, q3:q1:q0 becomes (8+1): 0:2:1.
10-9
0x0
RW
Reserved
8
0
RW
Sniff Mode Select
1 =performs RX and TX sniff (both the source port and destination port need to match).
0 = performs RX or TX sniff (either the 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 = no packets can cross the VLAN boundary.
0 = unicast packets (excluding unknown/multicast/broadcast) can cross the VLAN boundary.
6
1
RW
Multicast Storm Protection Disable
1 = “Broadcast Storm Protection” does not include multicast packets. Only DA = FFFFFFFFFFFF
packets are regulated.
0 = “Broadcast Storm Protection” includes DA = FFFFFFFFFFFF and DA[40] = 1 packets.
5
1
RW
Back Pressure Mode
1 = carrier sense-based Back Pressure is selected.
0 = collision-based Back Pressure 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 prevents 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 is flow controlled. This may not be “fair” to the flow control port.
3
0
RW
No Excessive Collision Drop
1 = the switch does not drop packets when 16 or more collisions occur.
0 = the switch drops packets when 16 or more collisions occur.
2
0
RW
Huge Packet Support
1 = accepts packet sizes up to 1916 bytes (inclusive). This bit setting overrides setting from bit 1 of
the same register.
0 = the max packet size is determined by bit 1 of this register.
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