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(xiě)的確定性防撞投資業(yè)務(wù)
文件頁(yè)數(shù)： 8/42頁(yè)
文件大小： 557K
代理商： ATA555814M01-PP
8
4681C–RFID–09/05
ATA5558 [Preliminary]
2.7.3
Master Key
The Master Key controls various operating modes as described in
Table 2-2
. For production test
purposes, other Master Key codes are used, but once the Configuration block has been double
locked these test functions can never be reactivated.
If the Master Key is set to
0110
, the blocks within the system memory section have different
access protection (see
Figure 2-5 on page 7
). These access rights are fixed and not influenced
by the Page Security Register. Access to password protected system memory blocks can only
be performed after the corresponding LoginWrite
or
LoginRead
has been successfully executed.
The password blocks themselves are non-readable. Traceability and configuration can always be
read but the traceability data cannot be altered.
A new ATA5558 device, when received by the customer can be considered as being unpro-
grammed (all
0
state), the only exception to this being the preprogrammed non-alterable
traceability information. For the tag manufacturer to be able to easily set up the tag passwords, it
is possible to provisionally switch the password protection off. i.e Master Key =
0
. In this state, it
is possible to read and write all non-locked (lock bits =
0
) memory blocks irrespective of the
page security. In this way, new tag passwords or Tag ID’s can be defined and written. Blocks,
which have once been locked (block lock bit =
1
) can however not be rewritten. When the cus-
tomer has completed the tag configuration, the Master Key is set to the “safe” state (= 6) thus
enabling the full password protection, and then finally the configuration block itself may be
locked. In this double locked condition, the configuration and all other locked blocks are irrevers-
ibly set and cannot be changed. This applies to both the user and the majority of the system
memory blocks.
Table 2-2.
Master Key Related Functions
Master Key
Enables
Protection Scheme
Page
Security
DDR
PM
EAS
User Memory
Clear
System
Memory
6
yes
yes
yes
no
yes
yes
9
yes
yes
yes
yes
yes
yes
others
no
no
no
yes
no
no
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(xiě)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

*
*
*