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參數(shù)資料
| 型號： | IDT77010 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Data Path Interface to Utopia Level 1 Translation Device |
| 中文描述： | 數(shù)據(jù)通道接口的烏托邦1級轉(zhuǎn)換設備 |
| 文件頁數(shù)： | 9/21頁 |
| 文件大?。?/td> | 141K |
| 代理商： | IDT77010 |
9 of 21
June 24, 2002
IDT77010
DPI Bus Data S equenc e
ForTransmtandReceiveDPIbusinthe53byteconfiguration, thefollowingtableshowsthedatanibblesequence.
Figure6 DPI-4TransmitBus withonlyonecell
Figure7 DPI-4TransmitBus withbacktobackcell
.
7-0
reserved
0x00
Alwayssetto0x00.
.
7-0
reserved
0x00
Alwayssetto0x00.
52
7-0
reserved
0x00
Alwayssetto0x00.
1.
Thisvaluecanbeprogrammedbyinstreamcontrolcells.
DPI Nibble Count
DPI Content
Comments
0
GFC [3:0]
GFC bitsfortheATMcellheader.Firstnibbletobetransmtted/received.
1
VPI[7:4]
VPIbitsMSBoftheATMcellheader.
2
VPI[3:0]
VPIbitsLSBoftheATMcellheader.
3
VCI[15:12]
VCIbitsMSBoftheATMcellheader.
4
VCI[11:8]
VCIbitsoftheATMcellheader.
5
VCI[7:4]
VCIbitsoftheATMcellheader.
6
VCI[3:0]
VCIbitsoftheATMcellheader.
7
PTI[2:0], CLP
PTIandCLPbitsoftheATMcellheader.
8
HEC [7:4]
HEC MostSignificantnibble.
9
HEC [3:0]
HEC LeastSignificantnibble.
10
Firstdatabyte[7:4]
FirstdataMostSignificantnibbleoftheATMcellheader.
11
Firstdatabyte[3:0]
FirstdataLeastSignificantnibbleoftheATMcellheader.
____
____
____
____
____
____
104
Lastdatabyte[7:4]
LastdatabyteMostSignificantnibbleoftheATMcell.
105
Lastdatabyte[3:0]
LastdatabyteLeastSignificantnibbleoftheATMcell.
Cell Byte
Number
Bit
Number
Func tion
Name
Bit
Contents
Desc ription
DTxClk
(Input)
DTxData[3:0]
(Input)
1
2
0
104
105
1
2
0
104
105
1
2
0
105
DTxClk
DTxFRM
(Input)
DT(Input)
103
102
3
4
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