...the world's most energy friendly microcontrollers
2014-01-23 - an0820_Rev1.00
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1 Smart Card Introduction
A smart card, chip card or integrated circuit card (ICC) is a device that includes an embedded integrated
circuit chip that can be either a secure microcontroller or equivalent intelligence with internal memory
or a memory chip alone. The card is connected to a reader via direct physical contact or via a remote
contactless RF interface. With the usage of an embedded microcontroller, smart cards have the ability
to store large amounts of data, carry out their own on card functions (such as encryption and mutual
authentication) and interact intelligently with a smart card reader.
Smart card technology conforms to international standards (ISO 7816 and ISO 14443) and is available
in a variety of form factors, including plastic cards, fobs, SIM cards used in GSM mobile phones, and
USB tokens.
Smart cards are used in many applications worldwide, including:
• Secure ID - employee ID badges, citizen ID documents, electronic passports, driver's licenses, online
authentication devices
• Healthcare - citizen health ID cards, physician ID cards, portable medical records cards
• Payment - contact and contactless credit/debit cards, transit payment cards
• Telecom - GSM Subscriber Identity Modules, pay telephone payment cards
The scope of this application note is to give an overview of the different parts of the ISO 7816 standard,
governing physical contact smart cards themselves and smart card interface devices or readers. The
EFM32 microcontroller is used to implement a USB-enabled smart card reader and the included software
example utilizes the EFM32 USART's 7816 smart card mode for automatic parity generation/check and
ACK/NACK generation.
Summary of Contents for EFM32
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