Cars · Electronics
5128XRAM
5128 XRAM explanation : The 5128 chip present in OBD0 ECUs is a 2K byte(?) SRAM chip. It is mapped into memory space at 1XXX hex any external communication(MOVX...
Adapted from pgmfi.org wiki
5128 XRAM explanation : The 5128 chip present in OBD0 ECUs is a 2K byte(?) SRAM chip. It is mapped into memory space at 1XXX hex - any external communication(MOVX A,@DPTR) with 1000 <= DPTR < 2000h will address the SRAM chip. see OBD0 PM6 PM7 RAM_Locations for some documentation on what is stored in XRAM.
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Source Adapted from 5128XRAM on pgmfi.org wiki. Licensed under CC BY-NC-SA 1.0.