Intel 8049H 8-bit microprocessor contains program memory(ROM) and data memory(RAM). Look at this data sheet for more info: http://www.datasheetarchive.com/preview/492619.html David --- tinker man <tinkerman007@GMAIL.COM> wrote: > Hi all, > > This is kinda getting in-depth into embedded systems design, but does > anybody know if the firmware for our ECU's (Digifant or Digijet) > resides completely on the 2732 EPROM or is part of it contained also > INSIDE the microcontroller itself? > The reason I'm asking this is because I suspect I have a fried > microcontroller (Intel 8049H) but if it's a custom version with > protected firmware inside, replacing it won't solve the problem. My > CPU reads: > MAF 8049H P A167 > 078801 > DSD8905V5 U > WBX82HSCH > (C) INTEL 1977 > > That WBX82HSCH stuff seems to hint it's a custom version > (WBX=WaterBoxer) with protected firmware, with some of the firmware > also outside in the external EPROM. > Any guru's out there? > > Cheers, > TM >
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