Hi All, I have some questions about data group memory. 1. Can I have data group size more than 128 bytes? 2. Is it possible to ask linker for use most of internal RAM space for data group? Thank you. Akram
bible time Erik here are the links to "the bible" Chapter 1 http://www.semiconductors.philips.com/acrobat/various/80C51_FAM_ARCH_1.pdf chapter 2 http://www.semiconductors.philips.com/acrobat/various/80C51_FAM_PROG_GUIDE_1.pdf chapter 3 http://www.semiconductors.philips.com/acrobat/various/80C51_FAM_HARDWARE_1.pdf