Evo9 cpu specs
Feb 4, 2010, 12:47 PM
#1
Evolving Member
Thread Starter
Evo9 cpu specs
I know I saw this info here, but my searches are coming up empty.
Picked up a Evo9 ecu to learn SH with.
Does anyone know:
MH8306H Renesas part number or closest part number?
Operating Frequency, Flash Memory, RAM?
Approximate unused RAM?
And are the Evo8 and Evo9 languages the same or are there some differences?
Thanks very much for any help.
Picked up a Evo9 ecu to learn SH with.
Does anyone know:
MH8306H Renesas part number or closest part number?
Operating Frequency, Flash Memory, RAM?
Approximate unused RAM?
And are the Evo8 and Evo9 languages the same or are there some differences?
Thanks very much for any help.
Feb 5, 2010, 07:21 AM
#2
Ceddy,
Most of us are running under the assumption than the IX is an SH7055.
They're both SH2, and from a wiring perspective, Mitsu seems to have kept the interrupts consistent across both the VIII and IX ECUs, which means you should be able to run VIII code on them. The SH2 processor in the 7055 has a slightly expanded instruction set (if memory serves), so the reverse wouldn't necessarily be true (even if you could make it fit
).
That gives you about 256K of additional ROM space tacked onto the end, plus an additional (again, if memory serves) unused 40K of memory, although it's not contiguous; you get a little up front, and a little at the end.
There was a PDF cross-reference of Mitsubishi part numbers and Renesas/Hitachi part numbers floating around a while back, but I can't seem to find it now. Anyone happen to remember that?
Some threads from Aktivematrix:
http://www.aktivematrix.com/forum/viewtopic.php?t=397
http://www.aktivematrix.com/forum/viewtopic.php?t=54
Most of us are running under the assumption than the IX is an SH7055.
They're both SH2, and from a wiring perspective, Mitsu seems to have kept the interrupts consistent across both the VIII and IX ECUs, which means you should be able to run VIII code on them. The SH2 processor in the 7055 has a slightly expanded instruction set (if memory serves), so the reverse wouldn't necessarily be true (even if you could make it fit
).That gives you about 256K of additional ROM space tacked onto the end, plus an additional (again, if memory serves) unused 40K of memory, although it's not contiguous; you get a little up front, and a little at the end.
There was a PDF cross-reference of Mitsubishi part numbers and Renesas/Hitachi part numbers floating around a while back, but I can't seem to find it now. Anyone happen to remember that?
Some threads from Aktivematrix:
http://www.aktivematrix.com/forum/viewtopic.php?t=397
http://www.aktivematrix.com/forum/viewtopic.php?t=54
Feb 5, 2010, 07:58 AM
#3
Evolving Member
Thread Starter
Thanks for the info. I was checking Renesas site last night, they really expanded their line up with the SH cpus, they have 30+ SH cpu types. Not that there is a lot of stuff for the H8/539, but its a lot easier to find because there is only 3-4 types of H8s.
I'm use to having 4k total, think the 1G had 400 bytes total.
I'm still trying to get the hang of SH, but having possibility of modern tools; compiler, assembler, debugger, tracer, emulator; makes things easier.
I'm use to having 4k total, think the 1G had 400 bytes total.
I'm still trying to get the hang of SH, but having possibility of modern tools; compiler, assembler, debugger, tracer, emulator; makes things easier.
Ceddy,
Most of us are running under the assumption than the IX is an SH7055.
They're both SH2, and from a wiring perspective, Mitsu seems to have kept the interrupts consistent across both the VIII and IX ECUs, which means you should be able to run VIII code on them. The SH2 processor in the 7055 has a slightly expanded instruction set (if memory serves), so the reverse wouldn't necessarily be true (even if you could make it fit).
That gives you about 256K of additional ROM space tacked onto the end, plus an additional (again, if memory serves) unused 40K of memory, although it's not contiguous; you get a little up front, and a little at the end.
There was a PDF cross-reference of Mitsubishi part numbers and Renesas/Hitachi part numbers floating around a while back, but I can't seem to find it now. Anyone happen to remember that?
Some threads from Aktivematrix:
http://www.aktivematrix.com/forum/viewtopic.php?t=397
http://www.aktivematrix.com/forum/viewtopic.php?t=54
Most of us are running under the assumption than the IX is an SH7055.
They're both SH2, and from a wiring perspective, Mitsu seems to have kept the interrupts consistent across both the VIII and IX ECUs, which means you should be able to run VIII code on them. The SH2 processor in the 7055 has a slightly expanded instruction set (if memory serves), so the reverse wouldn't necessarily be true (even if you could make it fit
).That gives you about 256K of additional ROM space tacked onto the end, plus an additional (again, if memory serves) unused 40K of memory, although it's not contiguous; you get a little up front, and a little at the end.
There was a PDF cross-reference of Mitsubishi part numbers and Renesas/Hitachi part numbers floating around a while back, but I can't seem to find it now. Anyone happen to remember that?
Some threads from Aktivematrix:
http://www.aktivematrix.com/forum/viewtopic.php?t=397
http://www.aktivematrix.com/forum/viewtopic.php?t=54
Feb 5, 2010, 09:11 AM
#4
Yeah, I have no idea how the ds-map guys put up with that, or for that matter, how you deal with the H8 stuff. It feels so...old. 
A couple of other resources:
http://evoecu.logic.net/wiki/ECU_Development (pinouts, hardware, etc)
http://evoecu.logic.net/wiki/Development_Tips (direct links to some renesas datasheets at the bottom)
It feels so...old. A couple of other resources:
http://evoecu.logic.net/wiki/ECU_Development (pinouts, hardware, etc)
http://evoecu.logic.net/wiki/Development_Tips (direct links to some renesas datasheets at the bottom)
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