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參數(shù)資料
| 型號(hào)： | EM4170A5CI2LB |
| 英文描述： | Multi-Purpose Precision Multiphase PWM Controller With Optional Active Voltage Positioning; Temperature Range: -40°C to 85°C; Package: 20-QFN |
| 中文描述： | 模擬雜項(xiàng) |
| 文件頁(yè)數(shù)： | 9/13頁(yè) |
| 文件大?。?/td> | 142K |
| 代理商： | EM4170A5CI2LB |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)當(dāng)前第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)
EM4170
Copyright
2002, EM Microelectronic-Marin SA
5
www.emmicroelectronic.com
Memory Map
0
Bit 31
Bit
0
9
7
6
5
8
4
Bit15
Bit0
3
2
1
UM1 15
UM1 0
Crypt Key 95
Crypt Key 80
Crypt Key 63
Crypt Key 48
Crypt Key 47
Crypt Key 32
Crypt Key 31
Crypt Key 16
Crypt Key 79
Crypt Key 64
Crypt Key 15
Crypt Key 0
ID 31
ID 16
ID 0
LB1,LB0,UM1 29
UM1 16
ID 15
word 15
14
13
12
11
10
UM2 63
UM2 48
UM2 47
UM2 32
UM2 31
UM2 16
UM2 15
UM2 0
PIN 31
PIN 16
PIN 15
PIN
0
Fig. 4
Standby Mode
After a Power-On Reset and upon completion of a command, the chip will execute the Standby Mode, in which it will
continuously send LIWs to allow the reader to issue commands. As every LIW has a duration of 160 periods of the RF field
the reader can turn to Receive mode every 1.3ms at 125kHz.
Receive Mode
To change from Standby Mode to another operation the chip has to be brought into Receive Mode. To do this the
Transceiver sends to the chip the RM pattern during the 32 clocks of modulated phase in a Listen Window (LIW). The
EM4170 will stop sending data upon reception of a valid RM. The RM pattern consists of 2 bits "0" sent by the transceiver.
The first "0" is to be detected during the 32 periods when the modulation is "ON" in the LIW. Next the EM4170 expects a
command to specify the operation to be executed.
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相關(guān)代理商/技術(shù)參數(shù) |
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| EM4170A5WS7 | 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:125kHz CRYPTO READ/WRITE Contactless Identification Device |
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| EM4170A5WW11 | 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:125kHz CRYPTO READ/WRITE Contactless Identification Device |
| EM4170A5WW11E | 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:125kHz CRYPTO READ/WRITE Contactless Identification Device |
| EM4200 | 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:128 bit Read Only Low Frequency Contactless Identification Device |
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