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
7. Command Description
Writing the OP code onto the COM register (00h) enables a command execution.
Upon completion of the command execution, bit3 of STAT0 will be changed to 1, and
CCMPN to Low. Throughout the execution of a particular command, the execution of
the other commands is prohibited; and rewriting to the WR register is also prohibited.
Should rewriting to either the WR register or the COM register occur, the proper
command execution may not be maintained.
NOP (OP Code: 0000h):
No operation.
Search(OP Code: 0001h):
When this command is executed, a lookup operation starts with a key value in WR0-2.
Upon completion of this command, associated data is written to RR0-1, and ML
(Match Length minus 1) to RR2, setting a bit 3 (Command Complete) of STAT0 to 1.
The bit 15 of RR2(H) shows a lookup result, registering either “1” as a hit or “0” as a
miss hit.
WR1
WR0
15
0 15
0
IP Address (31 -16 )
IP Address ( 15 - 0)
WR2
15
7
0
IP Address (39 -32 )
RR1
RR0
1
0 15
0
Associated Data (17-16) Associated Data ( 15 - 0)
RR2
15
H
5
0
ML ( 5-0 )
Version 2.5.4
Proprietary and Confidential
27
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