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: 3/144页
文件大小: 1779K
代理商: ZL50408GDG2
ZL50408
Data Sheet
100
Zarlink Semiconductor Inc.
12.3.6.20
USER_PROTOCOL_n – User Define Protocol 0~7
IC Address: h0B3+n; CPU Address: h0550+n
Accessed by CPU and IC (R/W)
(Default 00) This register is duplicated eight times from PROTOCOL 0~7 and allows the CPU to define eight
separate protocols.
12.3.6.21
USER_PROTOCOL_FORCE_DISCARD – User Define Protocol 0~7 Force Discard
IC Address: h0BB; CPU Address: h0558
Accessed by CPU and IC (R/W)
User Defined Logical Ports and Well Known Ports
The ZL50408 supports classifying packet priority through layer 4 logical port information. It can be setup by 8 Well
Known Ports, 8 User Defined Logical Ports, and 1 User Defined Range. The 8 Well Known Ports supported are:
23
512
6000
443
111
22555
22
554
Their
respective
priority
can
be
programmed
via
WELL_KNOWN_PORT[7:0]_PRIORITY
register.
WELL_KNOWN_PORT[_ENABLE can individually turn on/off each Well Known Port if desired.
Bit [6]:
Frame drop precedence when TOS field is 6 (Default 0)
Bit [7]:
Frame drop precedence when TOS field is 7 (Default 0)
Bits [7:0]:
User Define Protocol
Bit [0]:
Enable Protocol 0 Force Discard
1 – Enable
0 – Disable
Bit [1]:
Enable Protocol 1 Force Discard
Bit [2]:
Enable Protocol 2 Force Discard
Bit [3]:
Enable Protocol 3 Force Discard
Bit [4]:
Enable Protocol 4 Force Discard
Bit [5]:
Enable Protocol 5 Force Discard
Bit [6]:
Enable Protocol 6 Force Discard
Bit [7]:
Enable Protocol 7 Force Discard
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