User's Manual

2
Copyright Information
2005 XINGUODU Technology Company
COPYRIGHT: Unless permitted by applicable copyright law, reproduction, use and
translation without prior written permission is prohibited.
version number：V 1.00
Product specification
project
index
processor
K21 (1M bytes flash,128K RAM)
memory
4M bytes SPI FLASH
power
Connect the POS host, powered by the POS host
SIM card
2
LCD
2.8 Inch color LCD screen
keyboard
15 Key waterproof dustproof keyboard.
Security module
Support 100 keys
Programing
language
Standard C, support two development
Special function
Black box function