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PM7348 参数 Datasheet PDF下载

PM7348图片预览
型号: PM7348
PDF下载: 下载PDF文件 查看货源
内容描述: [ATM/SONET/SDH IC, CMOS, PBGA324,]
分类和应用: ATM异步传输模式
文件页数/大小: 318 页 / 1736 K
品牌: PMC [ PMC-SIERRA, INC ]
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S/UNI-IMA-4 Telecom Standard Product Data Sheet  
Released  
Figure 9 8-bit Receive Cell Transfer Format  
Bits 7-0  
Address Prepend  
Byte 0  
(Any-PHY and  
single channel  
UL2 only*)  
Optional Prepend[15:8]  
Optional Prepend[7:0]  
Byte 1  
(Optional)  
Byte 2  
(Optional)  
H1  
Byte 3  
Byte 4  
Byte 5  
Byte 6  
Byte 7*  
H2  
H3  
H4  
HEC  
PAYLOAD1  
Byte 8  
S
S
S
PAYLOAD48  
Byte 55  
Note  
Sꢀ Address prepend for Single Channel UL2 may be inserted in HEC/UDF field instead of prior to the cell  
For Any-PHY mode or single-PHY mode, the address prepend field encoding indicates the  
virtual PHY ID. The virtual PHY ID contains 2 sections, the lower 7 bits indicates the virtual  
PHY ID with valid values for 0 to 7, while the upper bits are user programmable and not used  
by the device but may be required in a user’s system for unique device identification when  
multiple devices exist on a bus.  
For UTOPIA multi-PHY mode, the address prepend is not used.  
10.1.3 Summary of Any-PHY/UTOPIA Modes  
The following table summarizes the available modes of the Any-PHY/UTOPIA Interfaces.  
Table 3 Available Modes of the Any-PHY/UTOPIA Interfaces  
Mode Dir UL2 Single PHY  
& Protocol  
UL2 Multi-PHY  
Any-PHY  
TX Poll  
Not supported  
PHY Channels: 4  
PHY Channels: 4  
Channel Enable Register:  
Channel Enable Register:  
TCAEN(3:0)  
TCAEN(10:0)  
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.  
Document No.: PMC-2020889, Issue 2  
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