wek's 8052.com homepage
BASIC52/RD2 - a variant of BASIC52, modified for the (A)T89C51RD2
Comparison of high speed '51 clones. Comparison of UART-ISP programmable '51 clones (with details of ISP and IAP procedures)
How to get rid of the P89V51RD2 SoftICE mode.
More P89V51RD2 tidbits. The 8051 opcode matrix is there, too, together with the cheatsheet. Check out.
Thanks Craig, the webmaster for this wonderful and inspiring website!