- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄379101 > CYNSE70032-83BGC (CYPRESS SEMICONDUCTOR CORP) Network Search Engine PDF資料下載
參數(shù)資料
| 型號： | CYNSE70032-83BGC |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | 通信及網(wǎng)絡 |
| 英文描述： | Network Search Engine |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PBGA272 |
| 封裝： | 27 X 27 MM, 2.33 MM HEIGHT, BGA-272 |
| 文件頁數(shù)： | 17/126頁 |
| 文件大?。?/td> | 3333K |
| 代理商： | CYNSE70032-83BGC |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁當前第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁
CYNSE70032
Document #: 38-02042 Rev. *E
Page 17 of 126
10.0
NSE Architecture and Operation Overview
The CYNSE70032 device consists of 16K × 68-bit storage cells referred to as data bits. There is a mask cell corresponding to
each data cell.
Figure 10-1
shows the three organizations of the device based on the value of the CFG bits in the command
register.
136
68
During a Search operation, the Search data bit (S), the data array bit (D), the mask array bit (M), and the global mask bit (G) are
used in the following manner to generate a match at that bit position (see
Table 10-1
). The entry with a match on every bit position
results in a successful Search during a Search operation.
In order for a successful Search to make the device the local winner in the Search operation, all 68-bit positions within a device
must generate a match for a 68-bit entry in 68-bit-configured quadrants, or all 136-bit positions must generate a match for two
consecutive even and odd 68-bit entries in quadrants configured as 136 bits, or all 272-bit positions must generate a match for
four consecutive entries aligned to four entry-page boundaries of 68-bit entries in quadrants configured as 272 bits.
An arbitration mechanism using a cascade bus determines the global winning device among the local winning devices in a Search
cycle. The global winning device drives the SRAM bus, SSV, and the SSF signals. In the case of a Search failure, the device(s)
with LDEV and LRAM bits set drive the SRAM bus, SSF, and SSV signals.
The CYNSE70032 device can be configured to contain tables of different widths, even within the same chip.
Figure 10-2
shows
a sample configuration of different widths.
Table 10-1. Bit Position Match
G
0
1
1
1
1
1
M
X
0
1
1
1
1
D
X
X
0
1
0
1
S
X
X
0
0
1
1
Match
1
1
1
0
0
1
Data
8 K
Data
Masks
4 K
272
CFG = 01010101
CFG = 10101010
D
M
16K
CFG = 00000000
Figure 10-1. CYNSE70032 Database Width Configuration
Masks
相關PDF資料 |
PDF描述 |
|---|---|
| CYP15G0403DXB-BGC | Independent Clock Quad HOTLink II⑩ Transceiver |
| CYW15G0403DXB-BGXC | Independent Clock Quad HOTLink II⑩ Transceiver |
| CYW15G0403DXB-BGXI | Independent Clock Quad HOTLink II⑩ Transceiver |
| CYP15G0403DXB-BGI | Independent Clock Quad HOTLink II⑩ Transceiver |
| CYP15G0403DXB-BGXC | Independent Clock Quad HOTLink II⑩ Transceiver |
相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CYNSE70064-50BGC | 制造商:Cypress Semiconductor 功能描述: |
| CYNSE70064-83BGC | 制造商:Cypress Semiconductor 功能描述: |
| CYNSE70064A | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Search Engine |
| CYNSE70064A-50BGC | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Search Engine |
| CYNSE70064A-66BG | 制造商:Cypress Semiconductor 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復。