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參數(shù)資料
| 型號： | MCRF450 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 13.56 MHz Read/Write Passive RFID Device |
| 中文描述： | 13.56 MHz讀/寫無源RFID器件 |
| 文件頁數(shù)： | 39/50頁 |
| 文件大小： | 1172K |
| 代理商： | MCRF450 |
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2003 Microchip Technology Inc.
DS40232H-page 39
MCRF450/451/452/455
EXAMPLE 9-4:
TO READ DATA FROM THE DEVICE
To read the content of Block 5 that has been programmed in the previous example, the Interrogator sends the following
command:
Calibration pulse + Read Command (‘
110
’) + Address (‘
00101
’) + Parity (‘
0
’)
= Calibration pulse + C50 (hex)
The gap positions in the 1-of-16 PPM signal for the above hex string are:
12 (C), 5 (5), 0 (0).
Device Response:
When the device receives the above Interrogator command, the device outputs the following 70 kHz Manchester
encoded data string (see
Section 6.2.2 “Structure of Device Response”
):
Preamble (8 bits) + Block number (5 bits, LSB first) + ‘000’ + Block Data (32 bits, LSB first) + SCRC (16 bits)
=
1-1-1-1-1-1-1-0
(f7)
+ 1-0-1-0-0-0-0-0
(5 0)
+ 1-1-1-1 0-1-1-1 1-0-1-1... 1-0-0-0
0-0-0-0
(f e d c 3 2 1 0)
+ 0-1-1-0 0-0-0-0 0-1-0-0 0-1-1-1
(602e).
EXAMPLE 9-5:
TO SEND THE “END PROCESS” COMMAND
The Interrogator command structure (see
Section 6.2 “Anti-collision Command Controller”
) for the End Process is:
Calibration pulse + End Process Command (‘
111
’) + Address (‘
01010
’) + Parity (
1
) = Calibration pulse + EA1 (hex)
The gap positions in the 1-of-16 PPM signal for the above hex string are:
14 (E), 10 (A), 1 (1).
Device Response:
The device outputs the 8-bit preamble (‘
11111110
’) when it receives the End Process command, and enters the
Sleeping Loop.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCRF451 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:13.56 MHz Read/Write Passive RFID Device |
| MCRF452 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:13.56 MHz Read/Write Passive RFID Device |
| MCRF455 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:13.56 MHz Read/Write Passive RFID Device |
| MCRFG0201 | 制造商:SPC Multicomp 功能描述:MODULAR COUPLER IN-LINE CAT5E 制造商:SPC Multicomp 功能描述:MODULAR, COUPLER, IN-LINE, CAT5E 制造商:SPC Multicomp 功能描述:MODULAR, COUPLER, IN-LINE, CAT5E; Connector Type:In-Line Adapter; Convert From Connector:RJ45; Convert From Gender:Jack; Convert From Positions:8; Convert To Connector:RJ45; Convert To Gender:Jack; Convert To Positions:8; SVHC:No ;RoHS Compliant: Yes |
| MCR-FL-C-UI-2UI-DCI | 制造商:Phoenix Contact 功能描述:ANALOG CONVERTER MCR-FL |
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