Table of Contents
1.0. Introduction ...............................................................................................................5
2.0. Features .....................................................................................................................6
3.0. ACM1281U-C7 Architecture .....................................................................................7
3.1. Reader Block Diagram...........................................................................................................7
3.2. Communication between PC/SC driver PICC and SAM .......................................................7
4.0. Hardware Design.......................................................................................................8
4.1. USB........................................................................................................................................8
4.1.1. Communication Parameters .........................................................................................8
4.1.2. Endpoints......................................................................................................................8
4.2. Contactless Smart Card Interface .........................................................................................8
4.2.1. Carrier Frequency.........................................................................................................8
4.2.2. Card Polling...................................................................................................................8
4.3. User Interface........................................................................................................................9
4.3.1. Buzzer...........................................................................................................................9
4.3.2. LED...............................................................................................................................9
5.0. Host Programming (PC-Linked) API......................................................................10
5.1. Contactless Smart Card Protocol ........................................................................................10
5.1.1. ATR Generation..........................................................................................................10
5.1.2. Pseudo APDUs for Contactless Interface...................................................................13
5.1.3. PICC Commands (T=CL Emulation) for MIFARE 1K/4K Memory Cards...................14
5.1.4. Access PC/SC-compliant tags (ISO 14443-4)............................................................24
5.1.5. Accessing MIFARE DESFire tags (ISO 14443-4).......................................................25
5.2. Peripherals Control..............................................................................................................27
5.2.1. Get Firmware Version.................................................................................................27
5.2.2. LED Control.................................................................................................................28
5.2.3. LED Status..................................................................................................................29
5.2.4. Buzzer Control ............................................................................................................30
5.2.5. Set Default LED and Buzzer Behaviors......................................................................31
5.2.6. Read Default LED and Buzzer Behaviors...................................................................32
5.2.7. Set Automatic PICC Polling........................................................................................33
5.2.8. Read Automatic PICC Polling.....................................................................................35
5.2.9. Manual PICC Polling...................................................................................................36
5.2.10. Set PICC Operating Parameter ..................................................................................37
5.2.11. Read PICC Operating Parameter...............................................................................38
Appendix A. Basic program flow for contactless applications....................................39
Appendix B. Extended APDU Example ..........................................................................40
Appendix C. Escape Command Example ......................................................................42
Appendix D. ACR128 Compatibility................................................................................43
