ACR3801 – Reference Manual
Version 2.01
www.acs.com.hk
Page 4 of 62
1.0. Introduction
ACR3801 Smart Card Reader acts as a communication interface between a computer and a smart
card. Different types of smart cards have different commands and different communication protocols,
which prevents in most cases, the direct communication between a smart card and a computer. The
ACR3801 Smart Card Reader establishes a uniform interface from the computer to the smart card for
a wide variety of cards. By taking care of the card specifics, it liberates the computer software
programmer of getting involved with the technical details of the smart card operation, which are in
many cases irrelevant to the implementation of a smart card system.
1.1. Reference Documents
The following related documents are available from
•
Universal Serial Bus Specification 2.0 (also referred to as the USB specification), April 27,
2000
•
Universal Serial Bus Common Class Specification 1.0, December 16, 1997
•
Universal Serial Bus Device Class: Smart Card CCID Specification for Integrated Circuit(s)
Cards Interface Devices, Revision 1.1, April 22, 2005
The following related documents can be ordered through
•
ISO/IEC 7816-1; Identification Cards – Integrated circuit(s) cards with contacts - Part 1:
Physical Characteristics
•
ISO/IEC 7816-2; Identification Cards – Integrated circuit(s) cards with contacts - Part 2:
Dimensions and Locations of the contacts
•
ISO/IEC 7816-3; Identification Cards – Integrated circuit(s) cards with contacts - Part 3:
Electronic signals and transmission protocols
1.2. Symbols and Abbreviations
Abbreviation Description
ATR
Answer-to-reset
CCID
Chip/Smart Card Interface Device
ICC
Integrated Circuit Cards
IFSC
Information Field Sized for ICC for protocol T=1
IFSD
Information Field Sized for CCID for protocol T=1
NAD
Node Address
PPS
Protocol and Parameters Selection
RFU
Reserved for future use*
TPDU
Transport Protocol Data Unit
USB
Universal Serial Bus
Table 1
: Symbols and Abbreviations
*
Note:
Must be set to zero unless stated differently.
