82V2608BB IDT, Integrated Device Technology Inc, 82V2608BB Datasheet - Page 37

• Manufacturer Part Number: 82V2608BB
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 82V2608BB

• Utopia Level: Level 2
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 2.97V
• Operating Supply Voltage (max): 3.63V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Package Type: BGA
• Pin Count: 208
• Mounting: Surface Mount
• Lead Free Status / Rohs Status: Not Compliant

Table-20 ConfigGroupPara Command (Encoding: 05H)
This is the first command to configure a physical group. Other configuration commands prior to this command would make the group work improperly.
Command Parameters
IDT82V2608
PROGRAMMING INFORMATION for IMAOS08
Byte Sequence
Group ID
5-6
1
2
3
4
7
1
Max delay compen-
Version Backward
Parameter Name
Acceptable M for
NE IMA ID
M for Tx (M
Compatibility
sation value
NE IMA ID
Group ID
Rx (M
2
rx
)
tx
)
M for Tx (M
(Not Avail-
Default
able)
NA
0H
0H
NA
NA
NA
3
tx
)
The physical group ID (0~3)
This is the physical identification of an IMA group. Each Group ID is unique in the IDT82V2608 and
should not be equal to any Channel ID that has been assigned to a UNI link. There are altogether 4 phys-
ical groups. This group ID can be any value from 0~3. Note that this Group ID is not the same as IMA ID
which is used to identify a logical IMA group and can be any value from 0~255.
0~255
This is the logical ID of a physical IMA group, which is packaged in ICP cells and is sent to the FE to indi-
cate which group a link belongs to.
0: 32 (default);
1: 64;
2: 128;
3: 256
This is the IMA frame length that this group will use at the transmit end. There are altogether 4 frame
lengths that can be selected: 32, 64, 128 and 256.
Note: M
This is the acceptable IMA frame length of the receive end.
Note: M
0~1024 cells
This is the maximum cells delay that can be tolerated.
This value is constrained by the size of the external SRAM and it shall be no more than 1024 cells. Refer
to
Note: If the value exceeds 1024, IMAOS will work improperly.
0: No;
1: Yes
Version backward compatibility indicates whether version 1.0 is supported when the FE’s group is using
IMA 1.0. By default, the chip works in version 1.1 and does not support backward compatibility.
3.4 SRAM
Acceptable M for
Rx (M
tx
rx
must be right, otherwise IMAOS will work improperly.
must be right, otherwise IMAOS will work improperly.
4
rx
Interface.
)
Bit
3
2
1
0
37
Max delay com-
pensation value
1: Accept M=256
0: Do not accept M=256
1: Accept M=128
0: Do not accept M=128
1: Accept M=64
0: Do not accept M=64
1: Accept M=32
0: Do not accept M=32
5-6
Version Backward
Compatibility
Description
Meaning
7
Inverse Multiplexing for ATM
P
8
tx
December 4, 2006
P
9
rx