PXF4333 Datasheet, PDF (187/361 Pages) Infineon Technologies AG – ABM 3G ATM Buf fer Manager

ABM-3G
PXF 4333 V1.1
Register Description
Register 26 DUBPTH0
Downstream UTOPIA Backpressure Threshold Register 0
CPU Accessibility:
Reset Value:
Offset Address:
Typical Usage:
Read/Write
FFFF_H
DUBPTH0 31_H
Written by CPU
Bit
15
14
13
12
11
10
9
8
DUBPTH0(17:10)
Bit
7
6
5
4
3
2
1
0
DUBPTH0(9:2)
DUBPTH0(17:2)
Downstream UTOPIA Backpressure Threshold 0
This bit field determines the backpressure threshold for the
Downstream UTOPIA Receive Interface Group 0 (see
Chapter 5.2.1) with a granularity of 4 cells.
The CPU programs the threshold with a granularity of 4 by right
shifting the value by 2:
DUBPTH0(17:2):= (maximum_cells(17:0) >> 2)
Data Sheet
187
2001-12-17