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| 型號(hào)： | M7040N-066ZA1T |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | CAP 0.01PF 50V 10% X7R AXIAL BULK P-MIL-PRF-39014 |
| 中文描述： | 64K的× 72位的網(wǎng)絡(luò)數(shù)據(jù)包進(jìn)入搜索引擎 |
| 文件頁(yè)數(shù)： | 65/159頁(yè) |
| 文件大?。?/td> | 1088K |
| 代理商： | M7040N-066ZA1T |
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M7040N
The logical 144-bit search operation is shown in
Figure 46, page 67. The entire table of 144-bit en-
tries is compared to a 144-bit word K (presented
on the DQ Bus in Cycles A and B of the command)
using the GMR and the local mask bits. The GMR
is the 144-bit word specified by the even and odd
global mask pair selected by the GMR Index in the
command
’
s Cycle A. The 144-bit word K (present-
ed on the DQ Bus in Cycles A and B of the com-
mand) is also stored in both even and odd
comparand register pairs selected by the Com-
parand Register Index in the command
’
s Cycle B.
The two comparand registers can subsequently
be used by the LEARN command with the even
comparand register stored in an even location,
and the odd comparand register stored in an adja-
cent odd location. The word K (presented on the
DQ Bus in Cycles A and B of the command) is
compared with each entry in the table starting at
location
“
0.
”
The first matching entry
’
s location ad-
dress,
“
L,
”
is the winning address that is driven as
part of the SRAM address on the SADR[23:0] lines
(see SRAM ADDRESSING, page 128).
Note:
The matching address is always going to an
even address for a 144-bit SEARCH.
The SEARCH command is a pipelined operation
that executes searches at half the rate of the fre-
quency of CLK2X for 144-bit searches in x144-
configured tables. The latency of SADR, CE_L,
ALE_L, WE_L, SSV, and SSF from the 144-bit
SEARCH command cycle (two CLK2X cycles) is
shown in Table 34, page 67.
For a single device in the table with TLSZ = 00, the
latency of the SEARCH from command to SRAM
access cycle is 4. In addition, SSV and SSF shift
further to the right for different values of HLAT, as
specified in Table 35, page 67.
Figure 44. Hardware Diagram for a Table with 1 Device
DQ[71:0]
CMDV, CMD[10:0]
SSF, SSV
SRAM
BHI[2:0]
BHO[2:0]
LHO[1]
LHI
3
2
1
0
M7040
LHO[0]
6
5
4
AI04698
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M7040N-083ZA1T | CAP 5600PF 100V 10% X7R AXIAL BULK P-MIL-PRF-39014 |
| M7040N-100ZA1T | 64K x 72-bit Entry NETWORK PACKET SEARCH ENGINE |
| M708 | PCM REMOTE CONTROL TRANSMITTER |
| M708A | PCM REMOTE CONTROL TRANSMITTER |
| M708B1 | PCM REMOTE CONTROL TRANSMITTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M7040N-083ZA1T | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:64K x 72-bit Entry NETWORK PACKET SEARCH ENGINE |
| M7040N-100ZA1T | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:64K x 72-bit Entry NETWORK PACKET SEARCH ENGINE |
| M7041 | 制造商:Tamura Corporation of America 功能描述: |
| M7045 | 制造商:Tamura Corporation of America 功能描述: |
| M705-5090142 | 功能描述:直流電源連接器 FEMALE STEREO JACK RoHS:否 制造商:Kycon 產(chǎn)品:Receptacles 觸點(diǎn)內(nèi)徑: 觸點(diǎn)外徑: 中心腳長(zhǎng)度: 電流額定值:7.5 A 電壓額定值:20 V 安裝角:Right 安裝風(fēng)格:Cable |
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