KS8999_11 MICREL [Micrel Semiconductor], KS8999_11 Datasheet - Page 29

• Manufacturer Part Number: KS8999_11
• Description: Integrated 9-Port 10/100 Switch with PHY and Frame Buffer
• Manufacturer: MICREL [Micrel Semiconductor]

January 2005
Micrel, Inc.
EEPROM Memory
Address
0
1
General Control Register
2
2
2
2
Priority Classification Control –802.1p tag field
3
3
3
3
3
3
3
3
Port 1 Control Register
4
4
4
4
4
4
4
Name
7-0
7-0
7-4
3-2
1
0
7
6
5
4
3
2
1
0
7-6
5
4
3
2
1
0
Description
Signature byte 1. Value = “55”
Signature byte 2. Value = “99”
Reserved –set to zero
Priority control scheme (all ports)
00 = Transmit all high priority before any low priority
01= Transmit high and low priority at a 10:1 ratio
10 = Transmit high and low priority at a 5:1 ratio
11 = Transmit high and low priority at a 2:1 ratio
Priority buffer reserve for high priority traffic
1 = Reserve 6KB of buffer space for high priority
0 = None reserved
VLAN enforcement
1 = All unicast frames adhere to VLAN configuration
0 = Unicast frames ignore VLAN configuration
1 = State “111”is high priority
0 = State “111”is low priority
1 = State “110”is high priority
0 = State “110”is low priority
1 = State “101”is high priority
0 = State “101”is low priority
1 = State “100”is high priority
0 = State “100”is low priority
1 = State “011”is high priority
0 = State “011”is low priority
1 = State “010”is high priority
0 = State “010”is low priority
1 = State “001”is high priority
0 = State “001”is low priority
1 = State “000”is high priority
0 = State “000”is low priority
Reserved –set to zero
TOS priority classification enable for port 1
1 = Enable
0 = Disable
802.1p priority classification enable for port 1
1 = Enable
0 = Disable
Port based priority classification for port 1
1 = High priority
0 = Low priority
Insert VLAN tags for port 1 if non-existent
1 = Enable
0 = Disable
Strip VLAN tags for port 1 if existent
1 = Enable
0 = Disable
Enable high and low output priority queues for port 1
1 = Enable
0 = Disable
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Default
(chip) Value
0x55
0x99
0000
00
0
0
1
1
1
1
0
0
0
0
00
0
0
0
0
0
0
KS8999
KS8999