- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄359091 > M7020R-050ZA1T (意法半導(dǎo)體) CAP TANT 22UF 10V 20% POLY SMD PDF資料下載
參數(shù)資料
| 型號： | M7020R-050ZA1T |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | CAP TANT 22UF 10V 20% POLY SMD |
| 中文描述： | 32K的× 68位進入網(wǎng)絡(luò)搜索引擎 |
| 文件頁數(shù)： | 24/150頁 |
| 文件大?。?/td> | 996K |
| 代理商： | M7020R-050ZA1T |
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頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁當前第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頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁第148頁第149頁第150頁
M7020R
24/150
The Command Register
Table 10. Command Register Field Descriptions
Field
Range
Initial Value
Description
SRST
[0]
0
Software Reset.
If ’1,’ this bit resets the device, with the same effect
as the hardware reset. Internally, it generates a reset pulse lasting for
eight CLK cycles. This bit automatically resets to a ’0’ the reset cycle
has completed.
DEVE
[1]
0
Device Enable.
If ’0,’ it keeps the SRAM Bus (SADR, WE_L, CE_L,
OE_L, and ALE_L), SSF, and SSV signals in 3-state condition and
forces the cascade interface output signals LHO[1:0] and BHO[2:0] to
’0.’ It also keeps the DQ Bus in input mode. The purpose of this bit is
to make sure that there are no bus contentions when the devices
power up in the system.
TLSZ
[3:2]
01
Table Size.
The host ASIC must program this field to configure the
chips into a table of a certain size. This field affects the pipeline
latency of the SEARCH and LEARN operations as well as the READ
and WRITE accesses to the SRAM (SADR[21:0], CE_L, OE_L,
WE_L, ALE_L, SSV, SSF, and ACK). Once programmed, the search
latency stays constant.
TLSZ
[3:2]
01
Latency in #
of CLK Cycles
00: 1 device
4
01: 2-8 devices
5
10: 9-31 devices
6
11: Reserved
HLAT
[6:4]
000
Latency of Hit Signals.
This field adds latency to the SSF and SSV
signals during SEARCH, and ACK signal during SRAM READ access
by the following number of CLK cycles.
000: 0
100: 4
001: 1
101: 5
010: 2
110: 6
011: 3
111: 7
LDEV
[7]
0
Last Device in the Cascade.
When set, this device is the last device
on the SRAM bus in the depth-cascaded table and is the default driver
for the SSF and SSV signals.
In the event of a SEARCH failure, the device with this bit set drives the
hit signals as follows:
SSF = 0, SSV = 1
During non-SEARCH cycles, the device with this bit set drives the
signals as follows:
SSF = 0, SSV = 0
LRAM
[8]
0
Last device on this SRAM Bus.
When set, this device is the last
device on this SRAM bus in the depth-cascaded table and is the
default driver for the SADR, CE_L, WE_L, and ALE_L signals. In
cycles where no M7020R device in a depth-cascaded table drives
these signals, this device drives the signals as follows:
SADR = 3FFFFF,
CE_L = 1
WE_L = 1
ALE_L = 1
OE_L is always driven by the device for which this bit is set.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M7020R-066ZA1T | 32K x 68-bit Entry NETWORK SEARCH ENGINE |
| M7020R-083ZA1T | 32K x 68-bit Entry NETWORK SEARCH ENGINE |
| M7020R | 32K x 68-bit Entry NETWORK SEARCH ENGINE |
| M72DW64000B | 64Mbit (x8/ x16, Multiple Bank, Boot Block) Flash Memory and 16Mbit Pseudo SRAM, 3V Supply, Multiple Memory Product |
| M72DW64000B70ZT | 64Mbit (x8/ x16, Multiple Bank, Boot Block) Flash Memory and 16Mbit Pseudo SRAM, 3V Supply, Multiple Memory Product |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M7020R-066ZA1T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:32K x 68-bit Entry NETWORK SEARCH ENGINE |
| M7020R-083ZA1T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:32K x 68-bit Entry NETWORK SEARCH ENGINE |
| M702-230442 | 功能描述:火線接頭 IEEE 1394 SMT 4P HORIZONTAL RoHS:否 制造商:Molex 產(chǎn)品:IEEE 1394 Firewire Connectors 標準:IEEE 1394 位置/觸點數(shù)量:6 節(jié)距:2 mm 觸點電鍍:Unplated 觸點材料:Phosphor Bronze 型式:Female 電流額定值:0.5 A 安裝風(fēng)格:Through Hole 端接類型:Solder Tab 連接器類型:Firewire Receptacle |
| M702-230642 | 功能描述:火線接頭 IEEE 1394 SMT 6P HORIZONTAL RoHS:否 制造商:Molex 產(chǎn)品:IEEE 1394 Firewire Connectors 標準:IEEE 1394 位置/觸點數(shù)量:6 節(jié)距:2 mm 觸點電鍍:Unplated 觸點材料:Phosphor Bronze 型式:Female 電流額定值:0.5 A 安裝風(fēng)格:Through Hole 端接類型:Solder Tab 連接器類型:Firewire Receptacle |
| M7023 | 制造商:Tamura Corporation of America 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。