User's Manual

ACR122L-ACS Design Specification
Version 0.03 19/05/2010
Page
8
of
50
ACR122L
-
ACS
4.2. Communication between the Host and the Contactless
interface, SAM and Peripherals.
The Contactless interface & Peripherals are accessed through the use of Pseduo-APDUs.
The SAM interface are accessed through the use of standard APDUs.
Serial
Interface
(CCID-liked
protocol)
ISO 7816 Parts 1-3
+
T=0 SAM Interfaces
Contactless
Interface
SAM 1
Contactless Tag
(Built-In Antenna)
Host
ACR122L
PCSC Layer
Peripherals
SAM 3 SAM 2
RF
Interface