参数资料
型号: ZL50408GDG2
厂商: CONEXANT SYSTEMS
元件分类: 网络接口
英文描述: DATACOM, LAN SWITCHING CIRCUIT, PBGA208
封装: 17 X 17 MM, 1.40 MM HEIGHT, LEAD FREE, MO-192, LBGA-208
文件页数: 18/144页
文件大小: 1779K
代理商: ZL50408GDG2
ZL50408
Data Sheet
114
Zarlink Semiconductor Inc.
12.3.9.5
PRG – Port GMAC Reservation
IC Address: h072; CPU Address: h0849
Accessed by CPU and IC (R/W)
Expressed in multiples of 16 granules. (Default 0x24)
12.3.9.6
PTH100_n – Port 0~7 Threshold
IC Address: h0C2+n; CPU Address: h0860+n (n = port number)
Accessed by CPU and IC (R/W)
Expressed in multiples of 16 granules. More than this number used on a source port will trigger either random drop
or flow control (Default 0x3)
12.3.9.7
PTH100_CPU – Port CPU Threshold
IC Address: h0CB; CPU Address: h0868
Accessed by CPU and IC (R/W)
Expressed in multiples of 16 granules. More than this number used on a source port will trigger either random drop
or flow control (Default 0x3)
12.3.9.8
PTHG – Port GMAC Threshold
IC Address: h0CA; CPU Address: h0869
Accessed by CPU and IC (R/W)
Expressed in multiples of 16 granules. More than this number used on a source port will trigger either random drop
or flow control (Default 0x12)
12.3.9.9
QOSC00, QOSC01 - Classes Byte Limit port 0
IC Address: h078-079; CPU Address: h0880-0881
Accessed by CPU and IC (R/W)
QOSC00 – Port 0 L1 threshold for queue 1
QOSC01 – Port 0 L2 threshold for queue 1
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
QOSC02, QOSC15 - Classes Byte Limit port 1-7
IC Address: h07A-087; CPU Address: h0882-088F
Accessed by CPU and IC (R/W)
Same as QOSC00, QOSC01 for ports 1-7
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