- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄359234 > MT90520AG (ZARLINK SEMICONDUCTOR INC) 8-Port Primary Rate Circuit Emulation AAL1 SAR PDF資料下載
參數(shù)資料
| 型號(hào)： | MT90520AG |
| 廠商： | ZARLINK SEMICONDUCTOR INC |
| 元件分類： | 數(shù)字傳輸電路 |
| 英文描述： | 8-Port Primary Rate Circuit Emulation AAL1 SAR |
| 中文描述： | ATM SEGMENTATION AND REASSEMBLY DEVICE, PBGA456 |
| 封裝： | 35 X 35 MM, 1.27 MM PITCH, PLASTIC, MS-034, BGA-456 |
| 文件頁(yè)數(shù)： | 63/180頁(yè) |
| 文件大?。?/td> | 1736K |
| 代理商： | MT90520AG |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)當(dāng)前第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)第131頁(yè)第132頁(yè)第133頁(yè)第134頁(yè)第135頁(yè)第136頁(yè)第137頁(yè)第138頁(yè)第139頁(yè)第140頁(yè)第141頁(yè)第142頁(yè)第143頁(yè)第144頁(yè)第145頁(yè)第146頁(yè)第147頁(yè)第148頁(yè)第149頁(yè)第150頁(yè)第151頁(yè)第152頁(yè)第153頁(yè)第154頁(yè)第155頁(yè)第156頁(yè)第157頁(yè)第158頁(yè)第159頁(yè)第160頁(yè)第161頁(yè)第162頁(yè)第163頁(yè)第164頁(yè)第165頁(yè)第166頁(yè)第167頁(yè)第168頁(yè)第169頁(yè)第170頁(yè)第171頁(yè)第172頁(yè)第173頁(yè)第174頁(yè)第175頁(yè)第176頁(yè)第177頁(yè)第178頁(yè)第179頁(yè)第180頁(yè)
MT90520
Data Sheet
63
Zarlink Semiconductor Inc.
.
Figure 24 - Overview of CBR Data Segmentation Process (SDT Mode)
4.5.4 Data TX_SAR Module
The TX_SAR (and specifically the sub-module which shall henceforth be called the Data TX_SAR) is capable of
transmitting non-CBR data cells which are not associated with any TDM port. These cells may be AAL5 signalling
cells, OAM-type data cells, or any other ATM cells which need to be transmitted from a system containing an
MT90520 device.
The Data TX_SAR does not process or manipulate the data cells. Rather, it simply reads cells which have been
written to a multi-cell circular buffer in external memory by a CPU. It then transfers those cells to the UTOPIA
module for transmission onto the UTOPIA bus.
The Data TX_SAR can operate simultaneously with the generation of AAL1 CBR cells by the TX_SAR.
4.5.4.1 Mode of Operation
The Data TX_SAR within the MT90520 must be enabled, by setting the
Data TX_SAR Enable
bit in the Data
TX_SAR Control Register at address 103Eh.
The user writes the cells to a buffer located in external memory. The address and size of this buffer are
programmed in the DTCON register, located at address 1038h. The cell structure format is illustrated in Figure 25.
When the Data TX_SAR is enabled, it begins to send cells from the cell buffer beginning with the cell pointed to by
the Data TX_SAR Read Pointer. The Read Pointer is incremented after each cell is sent. Cell transmission halts
when the Read Pointer is equal to the user-defined Data TX_SAR Write Pointer, which indicates the cell structure
number being written to by the CPU. Cell transmission begins again after the Write Pointer is changed to a different
value than the Read Pointer. The cell buffer is circular; the Read Pointer will never point above the top of the buffer.
TDM
Input
Buffer
DSTi
CSTi
STiCLK
STiMF
TDM Interface
Module (one per
port)
TX_SAR
UTO_OUT_CLK
UTO_OUT_ENBATM_CLAVPHY
UTO_OUT_CLAVATM_ENBPHY
UTO_OUT_SOC
UTO_OUT_DATA[15:0]
UTO_OUT_PAR
TX
UTOPIA
FIFO
UTOPIA Module
SDT Segmentation
Control Structure
(one per VC in
internal memory)
MT90520
External
ZBT
SRAM
SDT Segmentation
Circular Buffers (one
per TDM channel)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MT9072 | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| MT9072AB | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| MT9072AV | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| MT90820 | Large Digital Switch |
| MT90820AL | Large Digital Switch |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT90520AG2 | 制造商:Microsemi Corporation 功能描述:ATM SAR 2.048MBPS 2.5V CBR 456BGA - Trays 制造商:Zarlink Semiconductor Inc 功能描述:ATM SAR 2.048MBPS 2.5V CBR 456BGA - Trays |
| MT90528 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:28-Port Primary Rate Circuit Emulation AAL1 SAR |
| MT90528AG | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:28-Port Primary Rate Circuit Emulation AAL1 SAR |
| MT90528AG2 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:28-Port Primary Rate Circuit Emulation AAL1 SAR |
| MT90710 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:High-Speed Isochronous Multiplexer |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。