Oki80C154
MCU used in OBD0 MPFI ECUs that has zero internal code memory. requires the use of an external EPROM It is mostly 8051 compatible, and features a third timer like many other replacements.
Adapted from pgmfi.org wiki
MCU used in OBD0 MPFI ECUs that has zero internal code memory. requires the use of an external EPROM It is mostly 8051 compatible, and features a third timer like many other replacements. The main difference from a pure 8051 revolves around how the A5 instruction is handled.
Credits and source
Authors blundar
Source Adapted from Oki80C154 on pgmfi.org wiki. Licensed under CC BY-NC-SA 1.0.