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參數(shù)資料
| 型號： | T555714M01-TAS |
| 廠商： | Atmel Corp. |
| 英文描述： | CAT5 MULTI VIDEO RECEIVERDUAL PORT VGA,RS232 AND A |
| 中文描述： | 多功能330位讀/寫射頻識別芯片 |
| 文件頁數(shù)： | 9/30頁 |
| 文件大小： | 711K |
| 代理商： | T555714M01-TAS |
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9
T5557
4517E–RFID–02/03
Figure 10.
Complete Writing Sequence
Figure 11.
T5557 Command Formats
Password
When password mode is active (PWD = 1), the first 32 bits after the opcode are
regarded as the password. They are compared bit by bit with the contents of block 7,
starting at bit 1. If the comparison fails, the T5557 will not program the memory, instead
it will restart in regular-read mode once the command transmission is finished.
Note:
In password mode, MAXBLK should be set to a value below 7 to prevent the password
from being transmitted by the T5557.
Each transmission of the direct access command (two opcode bits, 32 bits password, ‘0’
bit plus 3 address bits = 38 bits) needs about 18 ms. Testing all
possible combinations
(about 4.3 billion) takes about two years.
Answer-On-Request
(AOR) Mode
When the AOR bit is set, the T5557 does not start modulation in the regular-read mode
after loading configuration block 0. The tag waits for a valid AOR data stream (“wake-up
command”) from the reader before modulation is enabled. The wake-up command con-
sists of the opcode (‘10‘) followed by a valid password. The selected tag will remain
active until the RF field is turned off or a new command with a different password is
transmitted which may address another tag in the RF field.
POR
Block 0 loading
Read mode
Block
address
Programming
Block data
Lock bit
Opcode
Read mode
Start gap
Write mode
T55571x
T555701
AOR (wake-up command)
Protected write
Standard write
Direct access (PWD = 1)
Reset command
Opcode
L
1 Data 32
2 Addr 0
1 Password 32
L
1 Data 32
2 Addr 0
10
1 Password 32
1 Password 32
2 Addr 0
Direct access (PWD = 0)
2 Addr 0
00
Page 0/1 regular read
0
0
*
p = page selector
1p *
1p *
1p *
1p *
1p *
相關(guān)PDF資料 |
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| T555715M01-PAE | Multifunctional 330-bit Read/Write RF-Identification IC |
| T555701M01-PAE | Multifunctional 330-bit Read/Write RF-Identification IC |
| T5557 | multifunctional 330-bit read/write RF-identification IC |
| T555701M01-DBW | CONNECTOR ACCESSORY |
| T555701M01-DDT | CONNECTOR ACCESSORY |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| T555715M01-DBW | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multifunctional 330-bit Read/Write RF-Identification IC |
| T555715M01-DDT | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multifunctional 330-bit Read/Write RF-Identification IC |
| T555715M01-DDW | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multifunctional 330-bit Read/Write RF-Identification IC |
| T555715M01-PAE | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multifunctional 330-bit Read/Write RF-Identification IC |
| T555715M01-PP | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multifunctional 330-bit Read/Write RF-Identification IC |
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