zl50411 Zarlink Semiconductor, zl50411 Datasheet - Page 115

• Manufacturer Part Number: zl50411
• Description: Managed 9-port Fast Ethernet Switch With Private Vlan
• Manufacturer: Zarlink Semiconductor

12.3.9.9
I²C Address: h078-079; CPU Address: h0880-0881
Accessed by CPU and I²C (R/W)
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Multiple of 16 granules. The two numbers set the two level for WRED on the high priority queue. When the queue
size exceeds the L1 threshold, received frame will subject to X% (high drop) or Y% (low drop) WRED. When the
queue size exceeds L2 threshold, received frame will either be filtered (high drop) or subject to Z% WRED.
12.3.9.10
I²C Address: h07A-087; CPU Address: h0882-088F
Accessed by CPU and I²C (R/W)
Same as QOSC00, QOSC01 for ports 1-7
12.3.9.11
I
Accessed by CPU and I
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Multiple of 16 granules. The two numbers set the two level for WRED on the high priority queue. When the queue
size exceeds the L1 threshold, received frame will subject to X% (high drop) or Y% (low drop) WRED. When the
queue size exceeds L2 threshold, received frame will either be filtered (high drop) or subject to Z% WRED.
12.3.9.12
I²C Address: h08E-08F; CPU Address: h0896-089B
Accessed by CPU and I²C (R/W)
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Multiple of 16 granules. The two numbers set the two level for WRED on the high priority queue. When the queue
size exceeds the L1 threshold, received frame will subject to X% (high drop) or Y% (low drop) WRED. When the
queue size exceeds L2 threshold, received frame will either be filtered (high drop) or subject to Z% WRED.
2
C Address: h088-08D; CPU Address: h0890-0895
QOSC00 – Port 0 L1 threshold for queue 1
QOSC01 – Port 0 L2 threshold for queue 1
QOSC16 – Port 8 (CPU) L1 threshold for queue 1
QOSC17 – Port 8 (CPU) L2 threshold for queue 1
QOSC18 – Port 8 (CPU) L1 threshold for queue 2
QOSC19 – Port 8 (CPU) L2 threshold for queue 2
QOSC20 – Port 8 (CPU) L1 threshold for queue 3
QOSC21 – Port 8 (CPU) L2 threshold for queue 3
QOSC22 – Port 9 (uplink) L1 threshold for queue 1
QOSC23 – Port 9 (uplink) L2 threshold for queue 1
QOSC24 – Port 9 (uplink) L1 threshold for queue 2
QOSC25 – Port 9 (uplink) L2 threshold for queue 2
QOSC26 – Port 9 (uplink) L1 threshold for queue 3
QOSC27 – Port 9 (uplink) L2 threshold for queue 3
QOSC00, QOSC01 - Classes Byte Limit port 0
QOSC16 - QOSC21 - Classes Byte Limit CPU port
QOSC02, QOSC15 - Classes Byte Limit port 1-7
QOSC22 - QOSC27 - Classes Byte Limit MMAC port
2
C (R/W):
Zarlink Semiconductor Inc.
ZL50411
115
Data Sheet