User's Manual

ACR1281S
 Advanced Card Systems Ltd. Page 36 of 56
PICC APDU COMMANDS FOR GENERAL PURPOSES
1. Get Data
The “Get Data command” will return the serial number or ATS of the “connected PICC”.
Table 1.1-1a: Get UID APDU Format (5 Bytes)
Command Class INS P1 P2 Le
Get Data FF CA 00
01
00 00
(Max
Length)
Table 2.1-1b: Get UID Response Format (UID + 2 Bytes) if P1 = 0x00
Response Data Out
Result UID
(LSB)
UID
(MSB)
SW1 SW2
Table 2.1-1c: Get ATS of a ISO 14443 A card (ATS + 2 Bytes) if P1 = 0x01
Response Data Out
Result ATS SW1 SW2
Table 2.1-1d: Response Codes
Results SW1 SW2 Meaning
Success 90 00 The operation is completed successfully.
Warning 62 82 End of UID/ATS reached before Le bytes
(Le is greater than UID Length).
Error 6C XX Wrong length (wrong number Le: ‘XX’
encodes the exact number) if Le is less
than the available UID length.
Error 63 00 The operation is failed.
Error 6A 81 Function not supported
Examples:
// To get the serial number of the “connected PICC”
UINT8 GET_UID[5]={0xFF, 0xCA, 0x00, 0x00, 0x00};
// To get the ATS of the “connected ISO 14443-4 A PICC”
UINT8 GET_ATS[5]={0xFF, 0xCA, 0x01, 0x00, 0x00};