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
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Using the TRF7970A EVM With PC GUI
2.3.11 Lock AFI (Command Code 0x28)
The Lock AFI Command is an optional command that locks the value of the AFI memory block on the
VICC. For TI, TI based, and some other manufacturers' VICCs, the Option_flag must be set in the request.
This command can be sent as an addressed or unaddressed request, and the VICC returns an error/no
error response after the lock operation has been completed.
To perform Lock Block using the GUI:
1. Select the radio button for Lock AFI.
2. Select Tag Flags accordingly (see Figure 15 for one example, note use of option flag).
3. Click Set Protocol.
4. Place tags or transponders near enough to the TRF7970A EVM antenna to be read.
5. Click Execute.
Figure 15. Lock AFI Command Example
21
SLOU321– August 2011 TRF7970A Evaluation Module (EVM)
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