参数资料
型号: M7010R-083ZA1T
厂商: 意法半导体
英文描述: 16K x 68-bit Entry NETWORK SEARCH ENGINE
中文描述: 16K的× 68位进入网络搜索引擎
文件页数: 45/67页
文件大小: 449K
代理商: M7010R-083ZA1T
45/67
M7010R
272-bit Logical SEARCH
The logical 272-bit SEARCH operation is shown in
Figure 32. The entire table of 272-bit entries is
compared to a 272-bit word K (presented on the
DQ Bus in both Cycles A, B, C, and D of the com-
mand) using the GMR and the local mask bits. The
GMR is the 272-bit word specified by the two pairs
of GMRs selected by GMR Indexes in the com-
mand
s Cycles A and C. The 272-bit word K (pre-
sented on the DQ Bus in Cycles A, B, C, and D of
the command) is compared with each entry in the
table starting at location
0.
The first matching entry
s location, address
L,
is
the winning address that is driven as part of the
SRAM address on the SADR[21:0] lines.
Note:
The matching address is always going to be
location
0
in a four-entry page for a 272-bit
SEARCH (two LSBs of the matching index will be
00
).
Figure 32. x272 Table with One Device
CFG = 10101010
(272-bit Configuration)
0
4
8
12
16380
Location
address
L
271
0
K
A
B
C
D
GMR
0
1
2
3
271
0
AI07044
(First matching entry)
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