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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2.3.12 Write DSFID (Command Code 0x29)
The Write DSFID Command is an optional command that writes a value to the DSFID 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 write operation has been completed.
To perform Write DSFID using the GUI:
1. Select the radio button for Write DSFID.
2. Select Tag Flags accordingly (see Figure 16 for one example, note use of option flag).
3. Click Set Protocol.
4. Enter Data to be written (in hex).
5. Place tags or transponders near enough to the TRF7970A EVM antenna to be read.
6. Click Execute.
Figure 16. Write DSFID Command Example
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TRF7970A Evaluation Module (EVM) SLOU321– August 2011
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