User's Manual

ACR122L-ACS Design Specification
Version 0.03 19/05/2010
Page
7
of
50
ACR122L
-
ACS
4.0. Implementation
4.1. The ACR122L is built based on the AC1038-2, AC1038s and
PN5321 chips.
PN5321
NFC Interface
Chip
AC1038-2
Controller
Built-In
Antenna
Host
Controller
Serial
Interface
9600 bps
Contactless
Tag
Contactless Interface
Carrier = 13.56MHz
Serial Interface
115200 Kbps
Figure 1.ACR122L System Block Diagram
SAM 1
<Peripherals>
- 4 x LEDs
- Buzzer
- LCD
- I/O Ports
AC1038
Controller
SAM 2
AC1038
Controller
SAM 3
Main
Controller
Second SAM
Controller
Third SAM
Controller