Advanced Card Systems Limited ACR123 Benutzerhandbuch
ACR123 User Manual
info@acs.com.hk
Version 1.00.00
www.acs.com.hk
Page 6 of 13
3.0. Architecture
STM32 be the main processor for communication with POS, control the contactless chip, SAM and
Peripherals. RC531 act as a contactless chip
Peripherals. RC531 act as a contactless chip
To perform communication between Main processor and contactless tag
For software architecture, ACR123 built-in simple OS that used for tasks management, resource
management, etc. Tasks included PICC Polling, SAM checking, Serial and USB communication flow,
etc.
management, etc. Tasks included PICC Polling, SAM checking, Serial and USB communication flow,
etc.
Carrier
Frequency
= 13.56MHz