参数资料
型号: M7010R
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: 49/67页
文件大小: 449K
代理商: M7010R
49/67
M7010R
LEARN is a pipelined operation and last for two
CLK cycles where TLSZ = 00, as shown in Figure
35, page 49, and TLSZ = 01, as shown in Figure
36, page 50 and Figure 37, page 51. Figure 36 and
Figure 37 assume that the device performing the
LEARN operation is not the last device in the table
and has its LRAM Bit set to '0.'
Note:
The OE_L for the device with the LRAM Bit
set goes high for two cycles for each LEARN (one
during the SRAM WRITE cycle, and one during
the cycle before it). The latency of the SRAM
WRITE cycle from the second cycle of the instruc-
tion is shown in Table 34, page 51.
Figure 35. LEARN Command Timing Diagram (TLSZ = 00)
Cycle
1
Cycle
2
Cycle
3
Cycle
4
Cycle
5
Cycle
7
Cycle
6
Cycle
8
Cycle
10
Cycle
9
CLK2X
CMDV
CMD[1:0]
ALE_L, CE_L
WE_L
OE_L
SADR[21:0]
SSV
SSF
CMD[8:2]
PHS_L
AI04289
A
B
X
X
X
X
X
X
DQ
A1
1
1
1
1
1
1
0
0
0
0
0
1
0
0
0
A2
Learn1
Learn2
X
X
TLSZ = 00, LRAM = 1, LDEV = 1
Comp1
Comp2
1A 1B
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