iSYSTEMTechBlog: MPC5xxxx TLB write access Support

winIDEA supports since build 9.11.63 MPC5xxx TLB (Translation Lookaside Buffer) write access. TLB entries can now be written via MemoryWrite functions (included in isystem.connect API set).

To access a specific TLB entry, the access address encodes the TLB index in bits 16-31 and the MAS register (MMU Assist Registers) in bits 0-15.

The TLB manipulation functions are provided via isystem.connect's CMPC5xxxController class.

Example:
import isystem.connect as ic

cmgr = ic.ConnectionMgr()
cmgr.connectMRU('')

# get MPC5xxx controller
MPCCtrl = ic.CMPC5xxxController(cmgr)

# get TLB 3
TLB = MPCCtrl.getTLB(3)

# change RPN to 0x40800000 physical
TLB.m_dwMAS3 = 0x40800000 | (TLB.m_dwMAS3 & 0xFFF)

# set TLB 3
MPCCtrl.setTLB(3, TLB)