
SCM3712 REFERENCE MANUAL 37
8. Commands description
8.1. Generic APDUs
8.1.1. Get UID Command
8.1.1.1. Description
This command will retrieve the UID or SNR or PUPI of the user token. This command can be used for
all supported contactless technologies.
8.1.1.2. Format
Setting Le = 0x00 can be used to request the full UID or PUPI is sent back
• For ISO14443A possible lengths are 4, 7 or 10
• For ISO14443B possible length is 4 bytes PUPI
• For FeliCa™ or NFC Forum type 3 tags possible length is 12 bytes of NFCID
• For NFC Forum type 1 tags possible length is 7 bytes of UID
8.1.1.3. Response
8.1.1.4. Status Words
SW1 SW2 Description
WARNING: specified Le is greater than data to
be retrieved
0xXX is the exact value for Le
Further error codes can be found in annex
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