pxf4336 Infineon Technologies Corporation, pxf4336 Datasheet - Page 122

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

Table 3-54
Parameter
CCRf*(15:0)
ERb*(15:0)
ERt*(15:0)
CIt/NIt
FInRateCount(5:0)
LastFRMSent(3:0)
LastInRateSent(9:0)
CRM(5:0)
CRMcnt(9:0)
TPf(15:0)
Note: The cell header template is used for generating new BRM cells. It is overwritten
Data Sheet
by each incoming FRM cell. It is necessary to initialize these fields because BRM
cells might be generated before the first FRM cell comes in.
AVT Context Table: ABR-VS/VD Parameter Description (cont’d)
Initial
Value
0
PCRf
PCRf
0
0
0
0
32
0
TPi
Comment
Current Cell Rate field in generated FRM cells; set
equal to ACRf* according to TM4.1
Explicit Rate extracted from received BRM cells;
used together with CIb/NIb to calculate ACRf
Explicit Rate extracted from received FRM cells;
latest value is stored for transparent forwarding in
generated BRM cells
Latest CI/NI values extracted from received FRM
cells; stored for transparent loop back to the
remote destination in generated BRM cells
Count all (user and RM cells) InRate events -
Check against Nrm (>=2, default 32), Nrm is FW
constant in Cache
Count 10ms Cnt events - Check against Trm
(default 100ms => 10d), Trm is global register
value
Count 10ms Cnt events - Check against ADTF
Max. number of RM cells in the loop, granularity 16:
16, 32, 48, 64, ...1024; constant connection
parameter
Current number of RM cells in the loop
Time Parameter corresponding to the Allowed Cell
Rate (ACR), resulted from ACR calculation for up-
or downstream PCR limiter; only one of them may
be enabled using the configuration bit 3
(ABR_FWD_Enable)
122
Functional Description
PXF 4336 V1.1
2001-12-17
ABM-P