Jim Fiocca

S12X RAM Protection Scheme (S12XDP512)

Discussion created by Jim Fiocca on Jun 4, 2008
Latest reply on Jun 5, 2008 by kef
I want to have one RAM page ($f8) as shared between CPU and XGATE. I want no RAM pages for XGATE access only. The datasheet says RAMXGU must be less than RAMSHL, so do I set
RAMXGU = $f7
RAMSHL = $f8
RAMSHU = $f8
even though $f7 is a non-existent RAM page?