參數(shù)資料
型號(hào)： 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(jìn)入網(wǎng)絡(luò)搜索引擎
文件頁(yè)數(shù)： 29/150頁(yè)
文件大?。?/td> 996K
代理商： M7020R-050ZA1T
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M7020R
COMMAND CODES AND PARAMETERS
A master device, such as an ASIC controller, is-
sues commands to the M7020R using the Com-
mand Valid CMDV signal and the CMD Bus. The
following subsections describe the functions of the
commands.
Command Codes
The M7020R implements four basic commands
shown in Table 16. The Command Code must be
presented to CMD[1:0] while keeping the com-
mand valid (CMDV) signal high for two CLK2X cy-
cles. These two CLK2X cycles are designated as
“Cycle A” and “Cycle B.” The controller ASIC must
align the instructions with the PHS_L signal. The
CMD[8:2] field passes the parameters of the com-
mand in Cycles A and B.
Commands and Command Parameters
Table 17, page 29 lists the CMD bus fields that
contain the M7020R command parameters as well
as their respective cycles.
Table 16. Command Codes
Table 17. Command Parameters
Note: 1. The 272-bit-configured devices or 272-bit-configured quadrants within devices do not support the LEARN Instruction.
CMD Code
Command
Description
00
READ
Reads one of the following: data array, mask array, device registers, or external
SRAM.
01
WRITE
Writes one of the following: data array, mask array, device registers, or external
SRAM.
10
SEARCH
Searches the data array for a desired pattern using the specified register from the
global mask register array and local mask associated with each data cell.
11
LEARN
The device has internal storage for up to 16 comparands that it can learn. The
device controller can insert these entries at the next free address (as specified by
the NFA register) using the LEARN Instruction.
Cmd
Cyc
8
7
6
5
4
3
2
1
0
READ
A
SADR[21]
SADR[20]
X
0
0
0
0 = Single
1 = Burst
0
0
B
0
0
0
0
0
0
0 = Single
1 = Burst
0
0
WRITE
A
SADR[21]
SADR[20]
X
Global Mask
Register Index [2:0]
0 = Single
1 = Burst
0
1
B
0
0
0
Global Mask
Register Index [2:0]
0 = Single
1 = Burst
0
1
SEARCH
A
SADR[21]
SADR[20]
SADR[19]
Global Mask
Register Index [2:0]
68-bit or 136-bit: 0
272-bit:
1 in 1st Cycle
0 in 2nd Cycle
1
0
B
Successful Search Register Index[2:0]
Comparand Register Index
1
0
LEARN
(1)
A
SADR[21]
SADR[20]
X
Comparand Register Index
1
1
B
0
0
Mode
0: 68-bit
1: 136-bit
Comparand Register Index
1
1
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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(biāo)準(zhǔn):IEEE 1394 位置/觸點(diǎn)數(shù)量:6 節(jié)距:2 mm 觸點(diǎn)電鍍:Unplated 觸點(diǎn)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(biāo)準(zhǔn):IEEE 1394 位置/觸點(diǎn)數(shù)量:6 節(jié)距:2 mm 觸點(diǎn)電鍍:Unplated 觸點(diǎn)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:
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