The following links provide useful background information for this microcontroller and using this controller board.
Data Sheets
AT89LP4052 Data Sheet: Atmel - AT89LP4052 Data Sheet
AT89LP4052 Technical Library (Includes FAQ, Assembly Code Examples and more): Atmel AT89LP4052 - Technical Library
MAX232 Data Sheets: Maxim Web Site
Books
8051: Customizing and Programming 8051 Micros
Compilers and Programming Tools
Assembly and Other Tools: Atmel
C Program: Keil C Compiler
Useful Websites
Atmel: To Atmel website
Circuit Cellar Magazine: To Circuit Cellar Website
User Tips
If you have some useful tips or relevant information that would be helpful to other users, please send it to technical@futurlec.com