Hi,
Should the 388 PBGA package be a problem for your project?
It does a bit, I could hand solder the QFP package but, err, its a bit hard when the contacts are under the chip ;-)
Ive spent most of the day reading up on the chips and optimum layouts for PBGA chip designs and have figured it all out, I think. :-)
Its a nice chip.. although Im not sure about the "Hardware-acceleration encryption" bit.
a new design, i suppose.
Yep, but Im sticking with the current prototype for a while yet, its going to be hard to get the new Coldfires for a while...
Usually the USB embedded in one of these multi function chips is a device not a host. Not very useful.
Correct, "The USB module implementation on the MCF547x product family provides all the logic necessary to
process the USB protocol as defined by version 2.0 specification for peripheral devices." :-( :-(
Oli, how does the inclusion of this FPU makes it easier to emulate the previous 68k processors? Is it instruction compatible?
The FPU wouldnt help with the 68K emulation, no.
As for the FPU being the same as the one in the 68K, no as well, there is a list of differences which include:
The ColdFire uses 64-bit double-precision and the M68000 family uses 80-bit
extended precision.
Coldfire FPU does not support:
fpGEN d8(An,Xi),FPx
fpGEN xxx.{w,l},FPx
fpGEN d8(PC,Xi),FPx
fpGEN #xxx,FPx
fmovem (Ay)+,#list
fmovem #list,-(Ax)
fmovem FP Control Registers
Its all in the MCF5475RM.pdf doc.
By the way, how far are you from a final production prototype? (in terms of work not time )
Moving on... :-P
Under half way.. but the last half will be the quicker bit :-)
sorry its taking so long, its only a part time thing you see :-(
