Annex D — Mechanical drawings 7. The maximum speed supported by SDI is Kbps by default. Data can be accessed through the contact or the contactless interface. For those when the contact interface is powered up the contactless interface is disabled. Escape commands for the contact interface
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The application-specific logic has to be implemented by software developers on the host.
It is possible using INF configuration to enable up to 4 slots — i. The SDI is based on the Some of those cards have one controller with two interfaces. This means that by default SDI switches to the maximum communication speed indicated by the card during its selection. Sending escape commands to SDI Initialization and anti-collision Identification cards — Contactless integrated circuit s cards — Proximity cards Part 4: Contactless communication principles and SDI usage recommendations SDI is a dual interface reader capable of reading both contact smart cards and contactless user tokens.
SCM Microsystems does not grant you any license to its designs. The following paragraph focuses on a few specifics of the contactless communication to cqrd usage recommendations in order to ensure best user experience. The presence of multiple user tokens in the field also interferes with the communication.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. This is used for internal communication i.
Definition of various terms and acronyms Reading sector 0 or sector 1 of this card requires authentication with key A or key B.
Block diagram The link between SDI and the host to which it is connected is the USB interface providing both the power and the communication channel. The maximum number of reder that can be transmitted and received is given below. Also the simultaneous working of multiple Contactless cards is not guaranteed and depends on the antenna size and the power requirements of the card.
The generated current is proportional to the magnetic flux going through the antenna of the user token. Some of the main error codes for the contact interface are: General information about SDI 3.
SDI Smart Card Reader User Manual Reference manual template Identiv, Inc
Input buffer with value 0x00 will switch to option 1 and input buffer with value 0x01 will switch to option 2. For example, the same card and type of reader might be used for building access attaching the card to the reader rsader network access inserting the card into the reader and entering a password.
Description This command can be used to send escape commands to SDI For description of escape commands please refer to the dedicated chapter in this manual.
These limits are designed to provide reasonable protection against harmful interference in a residential installation. Annex A — Csrd words table Should you have questions, you may send them to support scmmicro.
Enabling this key and setting this entry to 1 will override the firmware setting with option 2. Supported operating systems Operating systems supported by the driver: It is controlled by the device controller through registers. The magnetic field generated by SDI has a carrier frequency of It is also used as a fundamental clock input for the integrated circuit microprocessor to function. Multiple PICC in field 4.