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參數(shù)資料
| 型號： | T555714M01-PP |
| 廠商： | Atmel Corp. |
| 英文描述： | CAT5 MULTI VIDEO TRANSMITVIDEO,RS232 AND STEREO AU |
| 中文描述： | 多功能330位讀/寫射頻識別芯片 |
| 文件頁數(shù)： | 8/30頁 |
| 文件大?。?/td> | 711K |
| 代理商： | T555714M01-PP |
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8
T5557
4517E–RFID–02/03
A start gap will be accepted at any time after the mode register has been loaded
( 3 ms). A single gap will not change the previously selected page (by former opcode
‘10’ or ‘11’).
Figure 9.
Start of Reader to Tag Communication
Table 2.
Write Data Decoding Scheme
Write Data Protocol
The T5557 expects to receive a dual bit opcode as the first two bits of a reader com-
mand sequence. There are three valid opcodes:
The opcodes ‘10’ and ‘11’ precede all block write and direct access operations for
page 0 and page 1
The RESET opcode ‘00’ initiates a POR cycle
The opcode ‘01’ precedes all test mode write operations. Any test mode access is
ignored after master key (bits 1..4) in block 0 has been set to ‘6’. Any further
modifications of the master key are prohibited by setting the lock bit of block 0 or the
OTP bit.
Writing has to follow these rules:
Standard write needs the opcode, the lock bit, 32 data bits and the 3-bit address
(38 bits total)
Protected write (PWD bit set) requires a valid 32-bit password between opcode and
data, address bits
For the AOR wake-up command an opcode and a valid password are necessary to
select and activate a specific tag
Note:
The data bits are read in the same order as written.
If the transmitted command sequence is invalid, the T5557 enters regular-read mode
with the previously selected page (by former opcode ‘10’ or ‘11’).
Parameters
Remark
Symbol
Min.
Max.
Unit
Start gap
S
gap
10
50
FC
Write gap
Normal write mode
W
gap
8
30
FC
Write data in normal mode
‘0’ data
d
0
16
31
FC
‘1’ data
d
1
48
63
FC
Write mode
Read mode
d
0
d
1
W
gap
S
gap
相關PDF資料 |
PDF描述 |
|---|---|
| T555714M01-TAS | CAT5 MULTI VIDEO RECEIVERDUAL PORT VGA,RS232 AND A |
| 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 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| T555714M01-TAS | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multifunctional 330-bit Read/Write RF-Identification IC |
| 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 |
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