欢迎访问ic37.com |
会员登录 免费注册
发布采购

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 ]
 浏览型号PM73121-RI的Datasheet PDF文件第150页浏览型号PM73121-RI的Datasheet PDF文件第151页浏览型号PM73121-RI的Datasheet PDF文件第152页浏览型号PM73121-RI的Datasheet PDF文件第153页浏览型号PM73121-RI的Datasheet PDF文件第155页浏览型号PM73121-RI的Datasheet PDF文件第156页浏览型号PM73121-RI的Datasheet PDF文件第157页浏览型号PM73121-RI的Datasheet PDF文件第158页  
PM73121AAL1gator II  
Data Sheet  
PMC-Sierra, Inc.  
PMC-980620  
,VVXHꢀꢁ  
AAL1 SAR Processor  
TX_HEAD(1:2) Word Format  
Field (Bits)  
Description  
TX_HEAD(1)  
(15:8)  
First header byte in bits 15:8. Initialize to the proper value.  
TX_HEAD(2)  
(7:0)  
Second header byte in bits 7:0. Initialize to the proper value.  
TX_HEAD(3:4) Word Format  
Field (Bits)  
Description  
TX_HEAD(3)  
(15:8)  
Third header byte in bits 15:8. Initialize to the proper value.  
TX_HEAD(4)  
(7:0)  
Fourth header byte in bits 7:0. Initialize to the proper value.  
TX_HEAD(5) Word Format  
Field (Bits)  
Description  
TX_HEAD(5)  
(15:8)  
Fifth header byte that contains the precalculated HEC word. Initialize to the proper  
value.  
Not used  
(7:0)  
Write with a 0 to maintain compatibility with future software versions.  
QUE_CREDITS Word Format  
Field (Bits)  
Description  
FRAME_REMAINDER  
(15:14)  
A 2-bit quantity representing the remainder of the division operation the CSD performs  
when converting the frame differential (expressed in frames) to the frame differential  
(expressed in eighths of multiframes). This quantity is maintained by the CSD. Initialize  
to 00b.  
Not used  
(13:10)  
Write with a 0 to maintain compatibility with future software versions.  
QUEUE_CREDITS  
(9:0)  
A 10-bit quantity representing the number of credits(bytes) accumulated for the queue.  
It is measured in eighths (three LSBs are fractional bits). Initialize to 47 × 8 (178h) for  
UDF modes full cells and Single-DS0-no-pointer mode full cells, 46.875 × 8 (177h) for  
SDF modes full cells, or to the partially filled cell length × 8.  
ꢀꢂꢆ  
 复制成功!