The Tyros is an Acorn Computer :-) Suddenly I want one..hehe
The MPU is a Risc based 32bit, 333mhz Hitachi SuperH core engine which means Yamaha are writing their software in C/C++
Its an off the shelf chip from Renesas and you can find similar devices in everything from mobile phones to set top boxes and cars which is probably why he came across a Mazda part. It supports USB 2 and 24 bit TFT LCD.
Thanks mate... this indeed seems plausible, as these processors indeed are built for embeded multimedia hardware and have many RISC based features to advance processing...
SuperH Processors However compared to intel or even ARM structure they are something of the last century, RISC based CPU architectures (like Sparc and PowerPC)never really where a force to be reconned with in the 21th century, because it pretty much reached its max potential by the end of the 1990's. It got abandoned by all Major players like SUN and Aplle, because it could not compete with modern day processor architecture.
The only RisC processor that survived and currently is going very strong is the ARM processor, becuase they added some CISC additions to their structure, as well as Intel did add some RISC instruction sets to their CISC architecture.
Anway, the current architecture and speed and performance of these processors can be compared with the speed of an intel pentium 2. however the infrastructure and bus systemm has been updated to be compliant with todays devices like USB. memmory speed is 800 MB/s where as the speed of an intel core i7 is more like 10 to 20 GB/s. even its cache memmory access is slower then average DDR3 ram.
I think thats also the reason why Yamaha has not really updated the Motif range since the Motif XS in 2007. Sure they added the Motif XF, which is essentially a Motif XF with more (Rom) and flash memmory support(very slow) but its in the state of the Tyros..
Currently Yamaha is at the point they need to adapt new technollogy to keep up, and that means addapting all their current software ( Based on Montavista Linux with direct hardcoded C code) to either an ARM or intel environment. And thats taking them time, because their actuall development organisation is not big enough to pull this off fast enough.
Tyros and Yamaha Linux I am pretty sure they wanted to show a new Workstation this years winter NAMM, but they didnt make it. maybe summer NAMM or later this year, who knows. We will also know by then where the Tyros line is going after the 5.
In the end i think its incredible what they did with the Tyros 5 with such old hardware, it really shows that there are some oldfashioned efficient programming skills at work at Yamaha. In the end i can only say respect to those people, as for sure the Tyros 5 is pulling everything possible out of the hardware.