- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄97908 > EM4056B6CI2LC ACPI Regulator/Controller for Dual Channel DDR Memory Systems; Temperature Range: 0°C to 70°C; Package: 28-QFN T&R PDF資料下載
參數(shù)資料
| 型號： | EM4056B6CI2LC |
| 英文描述： | ACPI Regulator/Controller for Dual Channel DDR Memory Systems; Temperature Range: 0°C to 70°C; Package: 28-QFN T&R |
| 中文描述： | 模擬雜項 |
| 文件頁數(shù)： | 3/14頁 |
| 文件大?。?/td> | 108K |
| 代理商： | EM4056B6CI2LC |
EM4056
Copyright
2002, EM Microelectronic-Marin SA
11
www.emmicroelectronic.com
Continue command
After receiving the BitVal frame from the different transponders in the field the reader decides whether the tags with 0 or
1 should continue the arbitration process and communicates this with the Continue frame. The transponders whose last
BitVal was not identical with the confirmation in the Continue frame stop the arbitration process and wait for a new
command.
Arbitration in progress
1 bit
2 bits
MSB
1 bit
2 bits
MSB
Reader
Start
Continue
Start
Continue
6 bits
Bit0 Bit0 X X Bit1 Bit1
6 bits
Bit0 Bit0 X X Bit1 Bit1
Transponder
ta1p
n
th BitVal
ta2p
ta1p
n+1
th BitVal
Fig. 19
When the Continue frame of the 32
nd bit is processed, only one transponder is left. This new identified tag sets the RdEn bit
to 1 and belongs no longer to the active group. The arbitration cycle is completed by a transponder frame for selective
commands (RdEn,CRC). The CRC is calculated like a transponder frame for general commands. This means the CRC is
calculated over ROM and RdEn of the transponder in order to increase the reliability of the arbitration.
End of arbitration
1 bit
2 bits
MSB
1 bit
2 bits
MSB
Reader
Start
Continue
Start
Continue
6 bits
Bit0 Bit0 X X Bit1 Bit1
8 bits
MSB
Transponder
ta1p
32
th BitVal
ta2p
ta1p
CRC
Fig. 20
To identify the address of a transponder, it takes = 115 ms (including overhead as mentioned before). That makes it possible
to detect about 8.7 new transponders per second, independent of the number of transponders in the electromagnetic field.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| EM4069A6CB2RC | ACPI Regulator/Controller for Dual Channel DDR Memory Systems; Temperature Range: 0°C to 70°C; Package: 28-QFN |
| EM4069A6CI2LC | ACPI Regulator/Controller for Dual Channel DDR Memory Systems; Temperature Range: 0°C to 70°C; Package: 28-QFN T&R |
| EM4069B5CB2RC | Single 12V Input Supply Dual Regulator - Synchronous Rectified Buck PWM and Linear Power Controller; Temperature Range: 0°C to 70°C; Package: 16-QSOP |
| EM4069B5CI2LC | Single 12V Input Supply Dual Regulator - Synchronous Rectified Buck PWM and Linear Power Controller; Temperature Range: 0°C to 70°C; Package: 16-QSOP |
| EM4069B6CI2LC | Analog Miscellaneous |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EM4056B6WP11 | 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:2KBIT Read/Write with ANTICOLLISION Contactless Identification Device |
| EM4056B6WW11E | 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:2KBIT Read/Write with ANTICOLLISION Contactless Identification Device |
| EM4069 | 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:128 bit Read/Write Contactless Identification Device with OTP function |
| EM4069A5CB2RB | 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:128 bit Read/Write Contactless Identification Device with OTP function |
| EM4069A5CB2RC | 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:128 bit Read/Write Contactless Identification Device with OTP function |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。