參數(shù)資料
型號(hào)： 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(xiě)射頻識(shí)別芯片
文件頁(yè)數(shù)： 4/30頁(yè)
文件大小： 711K
代理商： T555714M01-PP
4
T5557
4517E–RFID–02/03
Modulator
The modulator consists of data encoders for the following basic types of modulation:
Table 1.
Types of e5550-compatible Modulation Modes
Notes:
1. A common multiple of bitrate and FSK frequencies is recommended.
2. In PSK mode the selected data rate has to be an integer multiple of the PSK
sub-carrier frequency.
Memory
The memory is a 330-bit EEPROM, which is arranged in 10 blocks of 33 bits each. All 33
bits of a block, including the lock bit, are programmed simultaneously.
Block 0 of page 0 contains the mode/configuration data, which is not transmitted during
regular-read operations. Block 7 of page 0 may be used as a write protection password.
Bit 0 of every block is the lock bit for that block. Once locked, the block (including the
lock bit itself) is not re-programmable through the RF field again.
Blocks 1 and 2 of page 1 contain traceability data and are transmitted with the modula-
tion parameters defined in the configuration register after the opcode ’11’ is issued by
the reader (see Figure 11). These tracebility data blocks are programmed and locked by
Atmel.
Figure 4.
Memory Map
Mode
Direct Data Output
FSK1a
(1)
FSK/8-/5
‘0’ = rf/8;
‘1’ = rf/5
FSK2a
(1)
FSK/8-/10
‘0’ = rf/8;
‘1’ = rf/10
FSK1
(1)
FSK/5-/8
‘0’ = rf/5;
‘1’ = rf/8
FSK2
(1)
FSK/10-/8
‘0’ = rf/10;
1’ = rf/8
PSK1
(2)
Phase change when input changes
PSK2
(2)
Phase change on bit clock if input high
PSK3
(2)
Phase change on rising edge of input
Manchester
‘0’ = falling edge, ‘1’ = rising edge
Biphase
‘1’ creates an additional mid-bit change
NRZ
‘1’ = damping on, ‘0’ = damping off
L
L
L
L
L
L
L
L
Block 7
Block 6
Block 5
Block 4
Block 3
Block 2
Block 1
Block 0
User data or password
User data
User data
User data
User data
User data
User data
Configuration data
32 bits
1
32
0
Not transmitted
Block 2
Block 1
Traceability data
Traceability data
1
1
P
P
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