pxf4336 Infineon Technologies Corporation, pxf4336 Datasheet - Page 129

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

3.6.10
3.6.10.1 RM_Cell FIFO Organization (IOP/FW View)
The ABM-P core extracts the first 7 dwords of every incoming RM Cell, prepends the QID
of the respective connection and forwards the resulting RM Cell dataset to the RM FIFO.
The IOP always sees the first entry of the RM FIFO, i.e. the longest waiting RM cell.
The format of the RM FIFO entries is shown in
Table 3-60
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Note: Using the 4-bit SubAddress, the IOP can directly access any of the 16 words.
Remarks on RM FIFO fields:
Words 2 - 15 are copied literally from the RM cell. Shaded regions are not used.
ID(7:0)
Data Sheet
w\b 15
0
0
VPI(11:0)
VCI(11:0)
UDF1(7:0)
ID(7:0)
ER(15:0)
CCR(15:0)
MCR(15:0)
QueueLength(31:16) (not supported)
QueueLength(15:0) (not supported)
SequenceNumber(31:16) (not supported)
SequenceNumber(15:0) (not supported)
don’t care
unused
unused
14
0
0
ERC Message Interface
RM Cell FIFO Entry (16 bit IOP View)
13
0
0
Protocol Identifier (should be 1 for ABR)
value forwarded but not evaluated by HW, optionally in FW: if not 1
then discard RM cell fragment.
12
0
0
11
0
0
10
0
QID(10:0)
9
0
8
0
129
7
0
UDF2(7:0)
DIR BN CI
Table
6
0
3-60:
5
0
4
0
NI
Functional Description
3
0
VCI(15:12)
PTI
RA reserved
PXF 4336 V1.1
2
0
2001-12-17
1
0
ABM-P
0
0
C