cx28224 Mindspeed Technologies, cx28224 Datasheet - Page 179

• Manufacturer Part Number: cx28224
• Description: Cx28224/5/9 Inverse Multiplexing For The Atm Ima Family
• Manufacturer: Mindspeed Technologies

CX28224/5/9 Data Sheet
28229-DSH-001-D
7–0
2–0
Bit
7
6
5
4
3
Default
0x00
—
—
—
—
—
0x415—IMA_DIFF_DELAY_DATA (IMA Differential Delay Control Data)
Differential Delay
Threshold
Delay Window
Name
—
—
—
—
—
Mindspeed Technologies
This field contains the cell offset that corresponds to differential delay threshold
setting for the group.
Reserved. Set to 0.
Reserved. Set to 0.
Reserved. Set to 0.
Reserved. Set to 0.
Reserved. Set to 0.
This field contains the number of IMA frames (assuming M=128) that are examined
when setting the differential delay buffer. This field is set based on the facility
payload rate.
Delay Window = 0, 5: Value = 255–(Cell_count >> 1)
Delay Window = 1–3, 6–7: Value = 255–Cell_count
Delay Window = 4: Value = 255–(Cell_count >> 2)
0 = 8 frames (1024 cells), for payload rates ≥ 1024 kbps
1 = 4 frames (512 cells), for 1024 kbps > payload rates ≥ 512 kbps
2 = 2 frames (256 cells), for 512 kbps > payload rates ≥ 256 kbps
3 = 1 frame (128 cells), for payload rates < 256 kbps
4 = 16 frames (2048 cells), for payload rates ≥ 1024 kbps
5 = 8 frames (1024 cells), for 1024 kbps > payload rates ≥ 512 kbps
6 = 4 frames (512 cells), for 512 kbps > payload rates ≥ 256 kbps
7 = 2 frame (256 cells), for payload rates < 256 kbps
For Control Type = 0
For Control Type = 1
Description
™
Registers
7
-
79