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PM73121-RI 参数 Datasheet PDF下载

PM73121-RI图片预览
型号: PM73121-RI
PDF下载: 下载PDF文件 查看货源
内容描述: AAL1分段重组处理器 [AAL1 Segmentation And Reassembly Processor]
分类和应用: ATM集成电路SONET集成电路SDH集成电路电信集成电路电信电路异步传输模式
文件页数/大小: 223 页 / 2148 K
品牌: PMC [ PMC-SIERRA, INC ]
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PM73121AAL1gator II  
Data Sheet  
PMC-Sierra, Inc.  
PMC-980620  
,VVXHꢀꢁ  
AAL1 SAR Processor  
Offset  
Name  
Description  
Initialize to 0 each time this queue is initialized.  
19h-1Fh Not used  
NOTE: All of these locations must be initialized whenever the queue is initialized.  
R_STATE_0 Word Format  
NOTE: This word is read-only and is maintained by the RALP.  
Field (Bits)  
Description  
Not used  
(15)  
Initialize to 0 to maintain future software compatibility.  
Indicates that the receiver structure was found. Initialize to 0.  
Initialize to 0 to maintain future software compatibility.  
Initialize to 0 to maintain future software compatibility.  
Initialize to 0 to maintain future software compatibility.  
Specifies the state of the SN state machine. Initialize to 0.  
Specifies the SN that was received two cells ago. Initialize to 0.  
Specifies the last SN that was received. Initialize to 0.  
R_STRUCT_FOUND  
(14)  
Reserved(OLDUNDRN_N)  
(13)  
Reserved(UNDRN_2AGO)  
(12)  
Reserved(ACTSN)  
(11:9)  
SN_STATE  
(8:6)  
2ND_LAST_SN  
(5:3)  
LAST_SN  
(2:0)  
R_MP_CONFIG Word Format  
NOTE: This word is maintained by the microprocessor.  
Field (Bits)  
Description  
R_CHK_PARITY  
(15)  
If set, check the parity on the incoming structure pointer.  
R_BYTES_CELL  
(14:9)  
A 6-bit integer specifying how many bytes per cell are required if no structure  
pointers are used. For UDF-HS mode, this must be set to 47. In other modes,  
set this to the partially filled length. If cells are not partially filled, set this to  
47.  
Not used  
(8)  
Write with a 0 to maintain future software compatibility.  
ꢀꢄꢄ  
 
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