參數(shù)資料
型號(hào): M7040N-083ZA1T
廠商: 意法半導(dǎo)體
英文描述: CAP 5600PF 100V 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
文件頁數(shù): 23/159頁
文件大?。?/td> 1088K
代理商: M7040N-083ZA1T
23/159
M7040N
Comparand Registers
The device contains 32 72-bit comparand regis-
ters (16 pairs) dynamically selected in every
SEARCH operation to store the comparand pre-
sented on the DQ Bus. The LEARN command will
later use these registers when executed. The
M7040N stores the SEARCH command
s Cycle A
comparand in the even-numbered register and the
Cycle B comparand in the odd-numbered register,
as shown in Figure 13.
Figure 13. Comparand Register Selection
During SEARCH and LEARN
Instructions
Mask Registers
The device contains 32 72-bit global mask regis-
ters (16 pairs) dynamically selected in every
SEARCH operation to select the search subfield.
The addressing of these registers is explained in
Figure 14. The four-bit GMR Index supplied on the
command (CMD) bus can apply 16 pairs of global
masks during the SEARCH and WRITE opera-
tions, as shown below.
Note:
In 72-bit SEARCH and WRITE operations,
the host ASIC must program both the even and
odd mask registers with the same values.
Each mask bit in the GMRs is used during
SEARCH and WRITE operations. In SEARCH op-
erations, setting the mask bit to '1' enables com-
pares; setting the mask bit to '0' disables
compares (forced match) at the corresponding bit
position. In WRITE operations to the data or mask
array, setting the mask bit to '1' enables WRITEs;
setting the mask bit to '0' disables WRITEs at the
corresponding bit position.
Figure 14. Addressing the Global Masks
Register Array
143
0
72
72
1
3
5
7
0
2
4
6
30
31
0
1
15
Address
Index
AI04667
143
0
72
72
1
3
5
7
9
0
2
4
6
8
11
13
15
17
19
21
23
25
27
29
31
10
12
14
16
18
20
22
24
26
28
30
0
1
2
3
6
7
8
9
5
4
Address
Index
AI04668
SEARCH and WRITE Command
Global Mask Selection
10
11
12
13
14
15
相關(guān)PDF資料
PDF描述
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
M708AB1 PCM REMOTE CONTROL TRANSMITTER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M7040N-100ZA1T 制造商:STMICROELECTRONICS 制造商全稱: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
M705-5090242 功能描述:RCA Phono連接器 FEMALE STEREO JACK RoHS:否 制造商:Neutrik 型式:Male 端接類型:Solder 安裝風(fēng)格:Cable 方向:Horizontal