zl50408 Zarlink Semiconductor, zl50408 Datasheet - Page 86
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zl50408
Manufacturer Part Number
zl50408
Description
Managed 8-port 10/100m 1-port 10/100/1000m Ethernet Switch
Manufacturer
Zarlink Semiconductor
Datasheet
1.ZL50408.pdf
(132 pages)
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13.3.6.4
CPU Address: 512
Accessed by CPU (R/W)
13.3.6.5
I²C Address 090, CPU Address 513
Accessed by CPU and I
13.3.6.6
I²C Address 091, CPU Address 514
Accessed by CPU and I²C (R/W)
13.3.6.7
CPU Address 515
Accessed by CPU (R/W)
Bit [7:0]:
Bits[3:0]:
Bits[7:4]:
See Programming QoS Registers application note, ZLAN-42, for more information
Bits[3:0]:
Bits[7:4]:
See Programming QoS Registers application note, ZLAN-42, for more information
Bits[3:0]:
Bits[7:4]:
MCCTH – Multicast Threshold Control
RDRC0 – WRED Rate Control 0
RDRC1 – WRED Rate Control 1
RDRC2 – WRED Rate Control 2
Threshold on the multicast granule count. Exceeding the threshold consider as
multicast resource low and the new multicast will be dropped at B% or flow con-
trol is triggered if enabled. (Default: 0x3)
2
C (R/W)
Corresponds to the frame drop percentage Y% for WRED. Granularity
6.25%.
Corresponds to the frame drop percentage X% for WRED. Granularity
6.25%.
Corresponds to the best effort frame drop percentage B%, when shared pool
is all in use and destination port best effort queue reaches UCC. Granularity
6.25%.
Corresponds to the frame drop percentage Z% for WRED. Granularity
6.25%.
Corresponds to the frame drop percentage RB%, for rate control. Granularity
6.25%.
Corresponds to the frame drop percentage RA% for rate control. Granularity
6.25%.
Zarlink Semiconductor Inc.
ZL50408
86
Data Sheet
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