Smart Machine Smart Decision
SIM521x EVB User Guide
11.04.2011
5
1 Overview
This document gives the usage of SIM521x EVB, user can get useful information about the
SIM521x EVB quickly through this document.
The Debug board is designed for customer to design their own applications by using the 3G
module SIM521x easily.
All the functions of the SIM521x can be used by this board. One can use UART, USB interface to
communicate with the SIM521x, and can design their camera phone by SIM521x. There is one
UART interface, one USB 2.0 interface, one SIM card interface, one T-FLASH card interface,
three camera interfaces, and four audio interfaces on the board and expand I/O interfaces.
One can connect the UART and/or the USB interface to a computer directly.
NOTE: This document is subject to change without notice at any time.
Table 1:SIM521x EVB Key features
Feature
Implementation
Power supply
1: DC 6.0V~9.0V
2: USB 5.0V power supply
functions
UART interface
USB2.0 interface
SIMCARD interface
TFLASH interface
Four sensor interface
I
2
C interface
Audio interface
ADC interface
Onkey/Resetkey/Intkey
RF Control switch
UART Control switch
Expanded I/O interface
