NXP Semiconductors
SL3S4011_4021
UCODE I²C
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described herein, have been included in section 'Legal information'.
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Date of release: 18 September 2018
Document identifier: SL3S4011_4021
Document number: 204935
Contents
1 General description ............................................ 1
2 Features and benefits .........................................1
2.1 UHF interface .................................................... 1
2.2 I2C interface ...................................................... 2
2.3 Command set .................................................... 2
2.4 Memory .............................................................. 2
2.5 Package ............................................................. 2
3 Applications .........................................................2
4 Ordering information .......................................... 3
5 Marking .................................................................3
6 Block diagram ..................................................... 3
7 Pinning information ............................................ 4
7.1 Pinning ............................................................... 4
7.2 Pin description ................................................... 4
8 Mechanical specification .................................... 5
8.1 SOT902 specification .........................................5
9 Functional description ........................................5
9.1 Air interface standards .......................................5
9.2 Power transfer ................................................... 5
9.3 Data transfer air interface ..................................5
9.3.1 Interrogator to tag Link ...................................... 5
9.3.2 Tag to reader Link .............................................5
9.4 Data transfer to I2C interface ............................ 6
9.5 Supported commands ........................................6
9.6 UCODE I2C memory ......................................... 6
9.6.1 UCODE I2C overall memory map ..................... 8
9.6.2 UCODE I2C TID memory details .......................9
10 Supported features ........................................... 10
10.1 UCODE I2C special feature .............................10
10.2 UCODE I2C special features control
mechanism .......................................................11
10.3 Change Config Command ............................... 13
10.4 UCODE I2C memory bank locking
mechanism .......................................................14
10.4.1 Possibilities ...................................................... 15
10.4.2 Via RF ............................................................. 15
10.4.3 Via I2C .............................................................16
11 I2C commands .................................................. 17
11.1 UCODE I2C operation ..................................... 17
11.2 Start condition ..................................................17
11.3 Stop condition .................................................. 17
11.4 Acknowledge bit (ACK) ....................................18
11.5 Data input ........................................................ 18
11.6 Addressing ....................................................... 18
11.7 Write Operation ............................................... 19
11.7.1 Word Write .......................................................19
11.7.2 Page Write .......................................................19
11.8 Read operation ................................................ 20
11.8.1 Random Address Read ................................... 20
11.8.2 Current Address Read .....................................20
11.8.3 Sequential Read .............................................. 20
11.8.4 Acknowledge in Read mode ............................21
11.8.5 EPC memory bank handling ............................21
12 RF interface/I2C interface arbitration .............. 21
13 Limiting values ..................................................22
14 Characteristics .................................................. 23
15 Package outline .................................................24
16 Abbreviations .................................................... 25
17 References ......................................................... 25
18 Revision history ................................................ 26
19 Legal information .............................................. 27