pxf4336 Infineon Technologies Corporation, pxf4336 Datasheet - Page 287

• Manufacturer Part Number: pxf4336
• Description: Abm Premium Atm Buf Fer Manager
• Manufacturer: Infineon Technologies Corporation

Register 62 QCIT
CPU Accessibility:
Reset Value:
Offset Address:
Typical Usage:
Bit
Bit
QCITH(11:0)
Data Sheet
15
7
QCIT Transfer Register
14
Unused(3:0)
Queue Congestion Indication Threshold
This threshold determines the number of cells stored in the
dedicated queue to set the associated congestion indication bit in
the bit pattern of the QCI Interface. The threshold value is
programmed with a granularity of 4 cells.
The CPU programs the threshold with a granularity of 4 cells by
right shifting the value by 2:
QCITH(11:0):= threshold >> 2
Note: Reset of the congestion indication is performed with a
6
Read/Write
0000
QCIT
Written by CPU
hysteresis. The hysteresis value is common to all congestion
indication thresholds, but evaluated queue threshold specific.
Register 30: DQCIC provides the details.
H
13
5
5C
H
12
QCITH(7:0)
4
287
11
3
QCITH(11:8)
10
2
Register Description
PXF 4336 V1.1
9
1
2001-12-17
ABM-P
8
0