参数资料
型号: IDT82V2608BB
厂商: INTEGRATED DEVICE TECHNOLOGY INC
元件分类: 数字传输电路
英文描述: INVERSE MULTIPLEXING FOR ATM
中文描述: ATM/SONET/SDH SUPPORT CIRCUIT, PBGA208
封装: PLASTIC, BGA-208
文件页数: 40/98页
文件大小: 398K
代理商: IDT82V2608BB
PROGRAMMING INFORMATION for IMAOS08
40
December 4, 2006
IDT82V2608
Inverse Multiplexing for ATM
Table-22 ConfigGroupWorkMode Command (Encoding: 07H)
This should be the third command issued to configure a group, i.e., this command should follow ConfigGroupInterface command.
Command Parameters
Byte Sequence
Parameter Name
Default
Description
1
Group ID
NA
The physical group ID (0~3).
This is the same Group ID in ConfigGroupPara command.
2
Symmetry mode
NA
0: SCSO (Symmetrical Configuration and Symmetrical Operation);
1: SCAO (Symmetrical Configuration and Asymmetrical Operation);
2: ACAO (Asymmetrical Configuration and Asymmetrical Operation)
Note:
Value exceeding 2 will be regarded as 0.
3
Stuff mode
1H
0: ITC (Independent Transmt Clock stuff insertion);
1: CTC (Common Transmt Clock stuff insertion)
If at least one of the links uses independent clock pin as its clock input, stuff mode can only be set as ITC.
If all the links within the group use common clock pin (i.e., TSCCK and RSCCK) as their clock input, stuff
mode can be set as either CTC or ITC.
Note:
Wrong configuration will lead to wrong ICP cells.
4
Stuff adv mode
1H
0: Pre-notify the stuff event 1 frame ahead;
1: Pre-notify the stuff event 4 frames ahead.
ICP stuff cell indication. It tells the FE the distance (unit is IMA frame) between the current ICP cell and
the forthcomng stuff ICP cell.
Note:
The upper 7 bits are Dont Care.
Command Reply
Byte Sequence
Reply Name
Description
1
Ack
0: OK;
1: Invalid parameter;
2: The physical group is not configurable;
Others: Internal error. The chip should be reset.
1
2
3
4
Group ID
Symmetry mode
Stuff mode
Stuff adv mode
1
Ack
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