- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄381520 > ATA555814M01-PP (Atmel Corp.) 1 kbit R/W IDIC with Deterministic Anticollision PDF資料下載
參數(shù)資料
| 型號： | ATA555814M01-PP |
| 廠商： | Atmel Corp. |
| 英文描述： | 1 kbit R/W IDIC with Deterministic Anticollision |
| 中文描述： | 1千比特讀/寫的確定性防撞投資業(yè)務 |
| 文件頁數(shù)： | 17/42頁 |
| 文件大?。?/td> | 557K |
| 代理商： | ATA555814M01-PP |
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頁當前第17頁第18頁第19頁第20頁第21頁第22頁第23頁第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
17
4681C–RFID–09/05
ATA5558 [Preliminary]
5.
Operating Modes
After initialization, the Operating Mode (Configuration block bits 23 and 24) is interrogated and
depending on it’s state, the device will go into either the READY state of the “Interrogator Talks
First” (ITF) mode or the Public Mode’s PM READY state if the PM bit is set or the “Electronic
Article Surveillance” (EAS) mode is selected.
5.1
Interrogator Talks First Mode (ITF)
For multi-tag applications, the ATA5558 is used in the “Interrogator Talks First” (ITF) mode with
anticollision handling capability. In this mode, the tag starts up in the READY state, where it
remains silent and waits for further interrogator commands before communication can take
place.
5.2
Tag State Machine
Any tag can find itself in one of the following states:
POWER DOWN
PM READY (for PM or EAS modes only)
READY (ITF mode)
SELECTED
QUIET
In the state diagram shown in
Figure 5-1 on page 18
, a state transition takes place by applying
or removing the field (power on/off) or via one of the commands Select, SelectAll, SelectGroup,
ResetSelected or ResetToReady. When a tag is unable to decode or process an interrogator
command (e.g. CRC or bit frame error), it will remain in the current state. Depending on the
state, tag(s) will only accept certain commands.
5.3
Power Down State
The tag is in the Power Down state when there is not enough energy in the interrogator field to
activate the tag. The ATA5558 commences a power-on initialization delay with an activated
weak damping level to achieve a field strength threshold for stable operation.
5.4
READY State (ITF)
The ATA5558 tag enters the READY state after it has been activated by the interrogator
(RF-field on) or after receiving either a
ResetToReady
or ResetSelected
command (the EAS and
PM deactivated). The READY state is the initial anticollision state, and in general all tags on this
state are unidentified.
5.5
Selected State
Before a tag can in any way be accessed, it must first be selected. Tag selection can take place
individually in which case they find themselves within the Selected state. They can enter the
Selected state as a result of receiving an explicit Select command with the matching Tag ID. In
this way, only one tag can theoretically be in the Selected state at any one time. If a tag should
find itself in the Selected state and a second tag is selected by a subsequent Select command,
the first tag will automatically proceed into the Quiet state.
相關PDF資料 |
PDF描述 |
|---|---|
| ATA555814-PAE | 1 kbit R/W IDIC with Deterministic Anticollision |
| ATA555814-PP | 1 kbit R/W IDIC with Deterministic Anticollision |
| ATA555815-DDT | 1 kbit R/W IDIC with Deterministic Anticollision |
| ATA555815-DDW | 1 kbit R/W IDIC with Deterministic Anticollision |
| ATA555815M01-DDT | 1 kbit R/W IDIC with Deterministic Anticollision |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ATA555814-PAE | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:1 kbit R/W IDIC with Deterministic Anticollision |
| ATA555814-PP | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:1 kbit R/W IDIC with Deterministic Anticollision |
| ATA555815C-PP | 功能描述:外圍驅動器與原件 - PCI ATA555815C-PP Transponder RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| ATA555815-DDT | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:1 kbit R/W IDIC with Deterministic Anticollision |
| ATA555815-DDW | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:1 kbit R/W IDIC with Deterministic Anticollision |
發(fā)布緊急采購，3分鐘左右您將得到回復。