參數(shù)資料
型號(hào)： 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(wù)
文件頁(yè)數(shù)： 19/42頁(yè)
文件大?。?/td> 557K
代理商： ATA555814M01-PP
19
4681C–RFID–09/05
ATA5558 [Preliminary]
5.6
Quiet State
The tag goes into the Quiet state from the Selected state when a new selection takes place i.e. a
Select or a GetID command is received. Unlike the READY state, the tag’s Tag ID in this state is
known. Tags in the Quiet state are excluded from subsequent anticollision detection.
5.7
Public Mode (PM) and PM READY State
In the Public Mode, communication commences with a single “Start of Frame” pattern (SOF), fol-
lowed by a continuous stream of serialized user data which is read cyclically from the user
memory. This starts with block 0, bit 31 and continues sequentially through to bit 0 of the final
block address defined by the configuration parameter MAXBLOCK. After reaching the MAX-
BLOCK address, data transmission repeats with block 0, bit 31. If, for example MAXBLOCK
were set to
1
, block 0 and
1
would be continuously transmitted. This transmission process con-
tinues indefinitely until terminated by either switching the field off or on the receipt of a valid
interrogator command.
On the start of a new command the tag will proceed temporarily from the PM READY state into
the (ITF) READY state. If the command is valid, it will be executed and the tag state changes as
if in the ITF mode (see
Figure 5-1 on page 18
). If the command is invalid, then it will drop back
into the PM READY state and continue to transmit data. To restart the public mode transmis-
sion, the tag must be re-initialized by reapplying the field (POR) or by using a ResetToReady
command.
Figure 5-2.
Public Mode Start Up
5.8
Electronic Article Surveillance (EAS)
The EAS Mode is intended for retail article surveillance whereby the device will be physically
attached to retail articles in a store or supermarket. The device will be preprogrammed into an
”unpaid state” before entering the sales area by programming the block 0 to MAXBLOCK of the
user memory to all
0s
. For convenience reasons MAXBLOCK should be set to
0
in the configu-
ration word. To increase security, the memory pages containing block 0 to MAXBLOCK should
be assigned a write password security level (see password protection). Once the article has
been purchased at the cash desk, the device is programmed into a “paid state” by writing the
block 0 with all
1
s, using the appropriate password (if necessary). As soon as an “unpaid”
device enters an interrogator field, it will modulate the interrogator field with an RF/2 signal. This
can be detected by the surveillance interrogator and used to trigger an appropriate audio or
visual warning. A “paid” device will remain silent. As in the Public Mode, the device will revert to
ITF mode READY state as soon as it receives a valid interrogator command. By reapplying the
field (POR) or using a
ResetToReady
command, the device returns to EAS mode.
POR
POR
initialisation
delay
Start of Frame
(SOF)
Data Block 0
Check Operating
Mode (= PM)
1
0
0
1
1
0
0
31 30
25
26
27
28
29
Bit position
Data Block
(Maxblock )
Example data values
1
0
0
1
1
4
3
0
1
2
1
0
0
1
1
0
31 30
26
27
28
29
Continue from
Data Block 0
相關(guān)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(guān)代理商/技術(shù)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(qū)動(dòng)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(fēng)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(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*