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參數資料
| 型號： | W66910CD |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 通信及網絡 |
| 英文描述： | TE Mode ISDN S/T-Controller with Microprocessor Interface |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PQFP100 |
| 封裝： | 14 X 20 MM, 1.40 MM HEIGHT, QFP-100 |
| 文件頁數： | 26/81頁 |
| 文件大小： | 681K |
| 代理商： | W66910CD |
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Data Sheet
W66910 PCI ISDN S/T-Controller
Publication Release Date:
Feb,2001
Revision 1.0
-26 -
7.2.4 D Channel Access Control
The D channel access control includes collision detection and priority management. The collision detection is always enabled.
The priority management procedure as specified in ITU-T I.430 is fully implemented in W66910.
A collision is detected if the transmitted D bit and the received E echo bit do not match. When this occurs, D channel
transmission is immediately stopped, and the echo channel is monitored to attempt the next D channel access.
There are two priority classes: class 1 and class 2. Within each class, there are normal and lower priority levels.
TABLE 7.4 D PRIORITY CLASSES
Priority class
1
Priority class
2
Normal level
8
Lower level
9
10
11
The selection of priority class is via the AR8/AR10 command. The following table summarizes the commands/indications used
for setting the priority classes:
TABLE 7.5 D PRIORITY COMMANDS/INDICATIONS
Command
Activate request, set priority 8
Activate request, set priority 10
Indication
Activate indication with priority 8
Activate indication with priority 10 AI10
Symbol Code
AR8
AR10
Abbr.
AI8
Remarks
Activation command, set D channel priority to 8
Activation command, set D channel priority to 10
Remarks
Info 4 received, D channel priority is 8 or 9
Info 4 received, D channel priority is 10 or 11
1000
1001
1100
1101
7.2.5 Frame Alignment
The following sections describe the behavior of W66910 in respect to the CTS-2 conformance test procedures for frame
alignment. Please refer to ETSI-TM3 Appendix B1 for detailed descriptions.
相關PDF資料 |
PDF描述 |
|---|---|
| W6691 | ISDN S/T Interface Transceiver |
| W6691CD | ISDN S/T Interface Transceiver |
| W6691CP | ISDN S/T Interface Transceiver |
| W6692 | PCI Bus ISDN S/T Interface Controller(PCI總線的ISDN S/T接口控制器) |
| W6693A | USB Bus ISDN S/T Interface Controller(USB總線的ISDN S/T接口控制器) |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W6691CD | 制造商:WINBOND 制造商全稱:Winbond 功能描述:ISDN S/T Interface Transceiver |
| W6691CP | 制造商:WINBOND 制造商全稱:Winbond 功能描述:ISDN S/T Interface Transceiver |
| W6692 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:PCI Bus ISDN S/T-Controller |
| W6692A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TE Mode S/T Controller with PCI 2.2 Interface and ACPT |
| W6692ACD | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ISDN LINE INTERFACE|BASIC|CMOS|QFP|100PIN|PLASTIC |
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