参数资料
型号: ZL50114GAG2
厂商: XILINX INC
元件分类: 通信及网络
英文描述: SPECIALTY TELECOM CIRCUIT, PBGA552
封装: 35 X 35 MM, 1.27 MM PITCH, LEAD FREE, PLASTIC, MS-034, BGA-552
文件页数: 84/113页
文件大小: 2004K
代理商: ZL50114GAG2
ZL50110/11/12/14
Data Sheet
72
Zarlink Semiconductor Inc.
7.6.2
Redundant Ethernet Switch
Figure 23 - Gigabit Ethernet Connection - Redundant Ethernet Switch
The central Ethernet Switch configuration can be extended to include a redundant switch connected to the second
ZL50110/11/12/14 GMII port. One port should be used for all the TDM-to-Packet and Packet-to-TDM data with the
other port idle. If the current port fails then data must be transferred to the spare port.
7.7
Power Up sequence
To power up the ZL50110/11/12/14 the following procedure must be used:
The I/O supply should lead the Core supply, or both can be brought up together
The I/O supply must never exceed the Core supply by more than 2.0VDC
The Core supply must never exceed the I/O supply by more than 0.5VDC
The System Reset and the JTAG Reset must remain low until at least 100 s after the 100 MHz system clock
has stabilised. Note that if JTAG Reset is not used it must be tied low.
This is illustrated in the diagram shown in Figure 24.
GMII
ZL5011x
TDM
GMII
ZL5011x
TDM
GMII
ZL5011x
TDM
GMII
ZL5011x
TDM
Ethernet Switch
Network
Ethernet Switch
Network
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