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參數(shù)資料
| 型號： | IDT77010L155PQF |
| 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(shè)備 |
| 文件頁數(shù)： | 13/21頁 |
| 文件大?。?/td> | 141K |
| 代理商： | IDT77010L155PQF |
13 of 21
June 24, 2002
IDT77010
S tatus Read Command
Thiscommandreadsthe77010RevisionnumberandtheInterruptpinstate, andcausesaninternallygeneratedcell.Seeinternallygeneratedcell
formatsection.
Change Control Cell Address Command
Thiscommandisusedtochangethecontrolcelladdress.OncemodifiedtheIDT77010willnotfilterold(default=0x1Fx)valuesfromtheATMcell
streamThecommanddoesnotreturnacommandcell.
Internally Generated Reply Cell Format
InternalcellsaregeneratedinresponsetoacommandcellorPHY interrupt.Thecellsareremotelysentandswitchedtothe77010.Thecellformat
ofaninternallygeneratedcellisasfollows:
Command Fields
Field Value (Hex)
Desc ription
Command
05
Statuscell.
DataA
xx
SeeDataAandDataBTablesonpage14.
DataB
xx
SeeDataAandDataBTablesonpage14.
Command Fields
Field Value (Hex)
Desc ription
Command
06
Statuscell.
DataA
00--FF
NewControlCellAddress;placedinlowerbyteofVCIField
DataB
xx
Don’tcare.
Cell Byte
Number
Bit Number
Func tion
Name
Bit Contents
Desc ription
0
7-4
GFC
0x0
Alwayssetto0x0
0
3-0
VPI7-4
0x0
Alwayssetto0x0
1
7-4
VPI3-0
0x0
Alwayssetto0x0
1
3-0
VCI15-12
0x0
Alwayssetto0x0
2
7-0
VCI11-4
0x02
SpecialVCIvalueforcontrolandstatuscells.
3
7-4
VCI3-0
0x0
SpecialVCIvalueforcontrolandstatuscells.
3
3-1
PTI
000'b
Alwayssetto000'b.
3
0
CLP
0'b
Alwayssetto0.
4
7-0
HEC
0x00
TransmtHEC byte, alwayssetto0x00.ThePHY devicegeneratesand
calculatestheHEC byte.
5
7-0
Command
00-FF Hex
ThisreturnedcellvalueisthesameasthecommandcellsCommandbyte.
Forinterruptcellthisbyte=00hex.
6
7-0
Data1
Seebelow
Seebelow.
7
7-0
Data2
Seebelow
Seebelow.
8
7-0
reserved
0x00
Alwayssetto0x00.
.
7-0
reserved
0x00
Alwayssetto0x00.
.
7-0
reserved
0x00
Alwayssetto0x00.
52
7-0
reserved
0x00
Alwayssetto0x00.
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