User's Manual
Table Of Contents
- TRF7970A Evaluation Module (EVM)
- 1 TRF7970A EVM Description
- 2 Using the TRF7970A EVM With PC GUI
- 2.1 USB Driver
- 2.2 TRF7970A EVM GUI Startup
- 2.3 ISO15693 Tab
- 2.3.1 Inventory (Command Code 0x01)
- 2.3.2 Read Single Block (Command Code 0x20)
- 2.3.3 Write Single Block (Command Code 0x21)
- 2.3.4 Lock Block (Command Code 0x22)
- 2.3.5 Read Multiple Blocks (Command Code 0x23)
- 2.3.6 Write Multiple Blocks (Command Code 0x24)
- 2.3.7 Stay Quiet (Command Code 0x02)
- 2.3.8 Select (Command Code 0x25)
- 2.3.9 Reset to Ready (Command Code 0x26)
- 2.3.10 Write AFI (Command Code 0x27)
- 2.3.11 Lock AFI (Command Code 0x28)
- 2.3.12 Write DSFID (Command Code 0x29)
- 2.3.13 Lock DSFID (Command Code 0x2A)
- 2.3.14 Get System Information (Command Code 0x2B)
- 2.3.15 Get Multiple Block Security Status (Command Code 0x2C)
- 2.3.16 TI Custom Commands
- 2.4 ISO14443A Tab
- 2.5 ISO14443B Tab
- 2.6 FeliCa Tab
- 2.7 Find Tags Tab
- 2.8 Registers Tab
- 2.9 NFC-PP Tab
- 2.10 Test Tab
- 3 Abbreviations
- 4 References
Using the TRF7970A EVM With PC GUI
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2.3.8 Select (Command Code 0x25)
The Select command is an optional command that is always issued as an addressed command. If the UID
sent as the address in the request matches the UID of the VICC, the VICC will enter the Selected state.
The intention of the Select Command is that only one VICC in the field should be in the Selected state at
any one time.
To perform Select command using the GUI:
1. Perform sixteen slot Inventory command (see Section 2.3.1) to obtain UIDs of VICCs.
2. Leave VICCs in field.
3. Perform Stay Quiet command on each transponder (see Section 2.3.7).
4. Select the radio button for Select.
5. Select from the pulldown menu to choose which one of the tags will be issued the Select Command.
6. Click Execute.
Figure 12. Select Command Example
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TRF7970A Evaluation Module (EVM) SLOU321– August 2011
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