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Features
* Smart Card Interface
- Compliance with Standards * ISO/IEC 7816-1, 2, 3 and 4 * EMV V96 * CB * Mondex(R), Proton, ZKA, Other: Contact Gemplus(R) - Supported Smart Cards * Number of Smart Cards Supported: 1 * Asynchronous Cards: T=0 and T=1 * Synchronous/Memory Cards Using a Command Interpreter * EMV or Non EMV Cards Electrical Interface * Transmission Speed: 9.6 Kbps to 115 Kbps * Card Power Supply: 1.8V/3V/5V * ESD Protection On Card Pins: 4 KV - Human Body Model * Card Presence or Insertion Detection * Short Circuit Current Limitation Host Interface - Physical Layer * Serial Asynchronous Link * Programmable Transmission Speed From 1,200 bps to 115,200 bps * Format: 8 bits, No Parity, 1 Stop Bit * Adjustable Signal Voltage - Protocol * Gemplus Block Protocol (GBP) * GBP Interface Library Kit Source Code Chip Power Supply - Voltage: VCC- 2.85V to 5.4V - Consumption: 8 mA Typical, 150 mA Max - Smart Card Powered - Power Down Mode * 100 A Max Power Down Current * Power-down/Power-up by Host Command Additional Features - Operating Temperature Range: 0C to +70C (-40C to +85C) - Package: SS0P24 - LED Management: The LED is On When the Card is Powered On
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GemCore Serial Lite PRO AT83C21GC Summary
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Description
AT83C21GC is designed to simplify the integration of smart card interfaces in electronic devices. It manages the electrical interface and communication with ISO 7816 -1/2/3/4 compatible smart cards and memory cards. Figure 1. Basic Architecture of a Smart Card Reader
Host Processor
AT83C21GC Smart Card Smart Card Connector
Rev. 4247AS-SCR-04/03
This is a summary Document. A complete document is available on the Gemplus Web site. www.gemplus.com
1
The connection with the host processor is achieved via a serial asynchronous link; the rate can be selected from a range from 1200 to 115,200 bps. The software inside the GemCore chip handles a communication protocol with the host system called the Gemplus Block Protocol (GBP). A complete set of documentation is available on the Gemplus web site: http://www.gemplus.com. A GBP Interface Library Kit can be provided, upon request. It consists of the source code of the GBP communication layer between the host and GemCore. It is written in the C language. See the Gemplus developers' site at www.gemplus.com. Enquiries can also be posted to cardreader@atmel.com.
2
AT83C21GC
4247AS-SCR-04/03
AT83C21GC
Pin Description
Figure 2. 24-pin SSOP Pinout
CVSS LI CVCC P1.5/CRST P1.4/CCLK P1.3/CC4 P1.2/CPRES P1.1/CC8 P1.0/CIO RST
XTAL2
1 2 3 4 5 6 7 8 9 10 11 12 SSOP24
24 23 22 21 20 19 18 17 16 15 14 13
VCC
EVCC DVCC VSS
P3.0/RxD P3.1/TxD
P3.3/INT1/OE
P3.4/T0 P3.2/INT0
P3.5/CIO1/T1 P3.6/CCLK1/LED0 P3.7/CRST1/LED1
XTAL1
Table 1. Port Signal Description
Internal Port P1.0 Signal Name CIO Power Supply CVCC ESD 4 kV Type I/O Description Smart Card Interface Function Card I/O - Pull-up medium is lower than 20K Smart Card Interface Function Card contact 8 - Pull-up medium must be less than 20K Smart Card Interface Function Card presence Smart Card Interface Function Card contact 4 - Pull-up medium must be less than 20K Smart Card Interface Function Card clock Smart Card Interface Function Card reset - Pull-up medium must be less than 20K UART Function Receive data input UART Function Transmit data output. Input/Output Function P3.2 is a bi-directional I/O port with internal pull-ups. Input/Output Function P3.3 is a bi-directional I/O port with internal pull-ups. Input/Output Function P3.4 is a bi-directional I/O port with internal pull-ups. Alternate Card Function Card I/O: Pull-up medium must be less than 20K
P1.1
CC8
CVCC
4 kV
I/O
P1.2
CPRES
VCC
4 kV
I
P1.3
CC4
CVCC
4 kV
I/O
P1.4
CCLK
CVCC
4 kV
O
P1.5
CRST
CVCC
4 kV
O
P3.0
RxD
EVCC
I
P3.1
TxD
EVCC
O
P3.2
INT0
DVCC
I/O
P3.3
INT1
EVCC
I/O
P3.4
EVCC
I/O
P3.5
CIO1
DVCC
I/O
3
4247AS-SCR-04/03
Table 1. Port Signal Description (Continued)
Internal Port Signal Name Power Supply ESD Type Description LED function P3.6 CCLK1 DVCC O These pins can be directly connected to the cathode of the standard LED without external current limiting resistors. The typical current of each output can be programmed by software to 2, 4 or 10 mA (LEDCON register). Input/Output Function P3.7 is a bi-directional I/O port with internal pull-ups. Reset Input Holding this pin low for 64 oscillator periods while the oscillatoris running resets the device. The Port pins are driven to their reset conditions when a voltage lower than VIL is applied, whether or not the oscillator is running. This pin has an internal pull-up resistor which allows the device to be reset by connecting a capacitor between this pin and VSS. Asserting RST when the chip is in Idle mode or Power-down mode returns the chip to normal operation. The output is active for at least 12 oscillator periods when an internal reset occurs. XTAL1 VCC I Input to the on-chip Inverting Oscillator Amplifier To use the internal oscillator, a crystal/resonator circuit is connected to this pin. If an external oscillator is used, its output is connected to this pin. XTAL2 VCC O Output of the on-chip Inverting Oscillator Amplifier To use the internal oscillator, a crystal/resonator circuit is connected to this pin. If an external oscillator is used, XTAL2 may be left unconnected. VCC PWR Supply Voltage VCC is used to power the internal voltage regulators and internal I/O's. LI PWR DC/DC Input LI must be tied to VCC through an external coil (typically 4, 7 H) and provide the current for the pump charge of the DC/DC converter. CVCC PWR Card Supply Voltage CVCC is the programmable voltage output for the Card interface. It must be connected to an external decoupling capacitor. DVCC PWR Digital Supply Voltage DVCC is used to supply the digital core and internal I/Os. It is internally connected to the output of a 3V regulator and must be connected to an external decoupling capacitor. EVCC VCC PWR Extra Supply Voltage EVCC is used to supply the level shifters of UART interface I/O pins. It must be connected to an external decoupling capacitor. This reference voltage is generated internally (automatically or not), or it can be connected to an external voltage reference. CVSS GND DC/DC Ground CVSS is used to sink high shunt currents from the external coil. VSS GND Ground
P3.7 RST
CRST1
DVCC VCC
I/O I/O
4
AT83C21GC
4247AS-SCR-04/03
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Disclaimer: Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company's standard warranty which is detailed in Atmel's Terms and Conditions located on the Company's web site. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual property of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel's products are not authorized for use as critical components in life support devices or systems. (c) Atmel Corporation 2003. All rights reserved. Atmel, the Atmel logo, and combinations thereof are registered trademarks of Atmel Corporation or its subsidiaries. Gemplus is a registered trademark of Gemplus. Mondex is a registered trademark of Mondex International Limited. Other terms and product names in this document may be the trademarks of others.
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4247AS-SCR-04/03 /xM

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