Subject	1990-1994 TT AND 1990-1992 NA use 8-bit memory.
Posted by	Ash's Z on November 16, 2006 at 10:36 PM
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In Reply To	I thought the 96 was the only year that posted by moxie on November 16, 2006 at 10:28 PM
Message	1993-1995 NA and 1995 TT uses 16-bit memory. Different processors: 8-bits are hitachi 6303s, 16-bits are Mitsu 7790s. The 8-bit ECUs are 32K programs and the 16-bits are 64K. There are differences in the programming and how some maps are used. There is no functional advantage between the 8-bit or 16-bit models - they both do the same things, have the same number of I/O, etc. Given that a daughterboard has to be used on the 16-bit model to allow external memory to be used, I took advantage of this in the design of the board to allow a 2-program switch as the EPROMs I'm using can contain two programs. [ ashspecz.com ] [ agpowers@bellsouth.net ] Enthusiasts soon understand each other. --W. Irving. Are you an enthusiast? If you are out to describe the truth, leave elegance to the tailor. Albert Einstein
Follow Ups	AshSPEC New Product Release: 16-BIT ECUs are ready! - Ash's Z 21:20:44 11/16/06 i'll be giving u a call in the spring - ARA300ZX 21:41:36 11/16/06 Congrats! it's been a long wait for some! (n/m) - Zeorymer 21:42:49 11/16/06 Thanks again for the ECU, it's working great - LITTLEZ(KY) 21:53:37 11/16/06 How much to upgrade a standard ashspec ECU to have - Crim 21:53:50 11/16/06 $100 + shipping. You can order it through the site. (n/m) - Ash's Z 21:56:52 11/16/06 u can upgrade the 8 bit board to a 2 eprom switchible - SpecNATT (Houston) 00:25:54 11/17/06 I've had a 2-program switch available for years. - Ash's Z 07:54:53 11/17/06 Oh, does the JWT nitrous require you to turn the car off - SpecNATT (Houston) 21:19:32 11/17/06 Nice. Now whens that Dual-Pass Radiator gonna be avail :-D (n/m) - TheSlimOne 22:21:50 11/16/06 Should be ready by the new year. (n/m) - Ash's Z 22:26:24 11/16/06 Hooray beer (n/m) - ARA300ZX 22:28:01 11/16/06 I thought the 96 was the only year that - moxie 22:28:14 11/16/06 95TT and 93-95NA were 16 bit OBDI. 96 was OBDII - Guapo 22:34:38 11/16/06 I've actually got the ODB2 figured out as well. Not sure - Ash's Z 22:38:35 11/16/06 If you want to pursue it I'll send you mine as a tester :) - golden_1 01:20:47 11/17/06 You've got another OBDII vote here. - CaneZ 12:10:19 11/17/06 What he said. - ENVYMYZ 23:57:56 11/16/06 1990-1994 TT AND 1990-1992 NA use 8-bit memory. - Ash's Z 22:36:04 11/16/06 ahh.. gotcha, thanks for the info - moxie 22:42:08 11/16/06 I believe the switch from 8 bit happened sometime mid 94 - BigA 08:09:27 11/17/06 How about those tubes? (n/m) - CollegeBoy 23:53:57 11/16/06 Good thing I knew this was coming... - Black_93_300ZX 00:15:50 11/17/06 Whens the IC piping coming out? (n/m) - Magnum 05:29:35 11/17/06 sooner than you think ...stay tuned ! .... I smell a GB (n/m) - The Devils Z 05:39:08 11/17/06 Woohoo! (n/m) - CollegeBoy 09:43:50 11/17/06 gb of massives/ducts/ic piping would be really nice (n/m) - Magnum 16:12:44 11/17/06 hold on a sec - aliaZ 18:41:01 11/17/06 Out of curiousity, is there any reason... - Jackie 09:10:45 11/17/06 The memory in our ECUs aren't flash memory. - Ash's Z 12:34:11 11/17/06 Ash I need to get in contact with you. Please e-mail me - Z_LiFe 12:37:32 11/17/06
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