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參數(shù)資料
| 型號： | KSZ8995XA |
| 廠商： | MICREL INC |
| 元件分類： | 網(wǎng)絡(luò)接口 |
| 英文描述： | Integrated 5-Port 10/100 QoS Switch |
| 中文描述： | DATACOM, LAN SWITCHING CIRCUIT, PQFP128 |
| 封裝： | LEAD FREE, PLASTIC, QFP-128 |
| 文件頁數(shù)： | 34/51頁 |
| 文件大小： | 305K |
| 代理商： | KSZ8995XA |
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KS8995XA
Micrel, Inc.
M9999-051305
34
May 2005
Address
1
Name
Tag removal
Description
1 = when packets are output on the port, the switch
will remove 802.1q tags from packets with 802.1q tags
when received. The switch will not modify packets
received without tags.
0 = disable tag removal.
1 = the port output queue is split into high and low
priority queues.
0 = single output queue on the port. There is no priority
differentiation even though packets are classified into
high or low priority.
Mode
R/W
Default
0
0
Priority enable
R/W
0
Register 17 (0x11): Port 1 Control 1
Register 33 (0x21): Port 2 Control 1
Register 49 (0x31): Port 3 Control 1
Register 65 (0x41): Port 4 Control 1
Register 81 (0x51): Port 5 Control 1
Address
7
Name
Sniffer port
Description
1 = port is designated as sniffer port and will transmit
packets that are monitored.
0 = port is a normal port.
1 = all the packets received on the port will be marked
as “monitored packets” and forwarded to the designated
“sniffer port.”
0 = no receive monitoring.
1 = all the packets transmitted on the port will be
marked as “monitored packets” and forwarded to the
designated “sniffer port.”
0 = no transmit monitoring.
Define the port’s Port VLAN membership. Bit 4 stands
for port 5, bit 3 for port 4...bit 0 for port 1. The port can
only communicate within the membership. A ‘1’
includes a port in the membership, a ‘0’ excludes a port
from membership.
Mode
R/W
Default
0
6
Receive sniff
R/W
0
5
Transmit sniff
R/W
0
4-0
Port VLAN membership
R/W
0x1f
Register 18 (0x12): Port 1 Control 2
Register 34 (0x22): Port 2 Control 2
Register 50 (0x32): Port 3 Control 2
Register 66 (0x42): Port 4 Control 2
Register 82 (0x52): Port 5 Control 2
Address
7
6
5
packets
Name
Reserved
Reserved
Discard non-PVID
Description
Reserved
Reserved
1 = the switch will discard packets whose VID does
not match ingress port default VID.
0 = no packets will be discarded.
1 = will always enable Rx and Tx flow control on the
port, regardless of AN result.
0 = the flow control is enabled based on AN result.
Mode
Default
0x0
0
0
R/W
R/W
4
Force flow control
R/W
0
For port 4 only,
there is a special
configuration pin
to
set the default, Pin
PCOL strap option.
Pull-down (0): No
force flow control.
Pull-up (1): Force
flow control.
Note: PCOL has
internal pull-down
.
Note: Setting a port for both half-duplex and forced
flow control is an illegal configuration. For half-duplex
enable back pressure.
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