KE5BLME064 View Datasheet(PDF) - KAWASAKI MICROELECTRONICS
Part Name
Description
MFG CO.
'KE5BLME064' PDF : 53 Pages View PDF
Kawasaki LSI
64K Longest Match Search Engine (KE5BLME064)
PRELIMINARY
MBWE#N: High
MBWA#N High
MBWB#N High
MBWC#N High
MBWD#N High
(#: 1, 2, 3)
4.3. Initialization
When the Initialize command is executed, insertion / deletion Queue and search table
are initialized, Entry Counter constant becomes 0000h. This command is suitable for
constructing a new search table.
As in using other command, before proceeding with the subsequent commands, check
anew by monitoring the CCMPN pin whether the initialization process has been
completed.
4.4. Data Insertion
To enter data in the table, use the Insert command. Ensure that the IP address is set
to WR0-2, the associated data(ASD) to WR3-4, and PL (prefix length –1) to WR2.
Example:
When inserting 0.192.1.2.0/32 with associated data 3456h, enter the following.
WR0: IP[15:0]
WR1: IP[31:16]
WR2: 2’bxx, PL[5:0], IP[39:32]
WR3: ASD[15:0]
WR4: 14’bx..x, ASD[17:16]
0200h (2.0)
C001h (192.1)
1F00h (31=32-1.0)
3456h
0000h
Ensure that the value entered in WR2 is the prefix-length minus 1, not the prefix-
length itself. Please put the value of 0 in the host address part.
The completion of the Insert command is confirmed by a low signal on the CCMPN pin.
Proceed with the subsequent commands after checking the CCMPN status.
Actually, the data is acknowledged as the data of the search table within 20 clocks after
the Insert command is issued and the Entry Counter is increased before the completion
of the Insert command.
Version 2.5.4
Proprietary and Confidential
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