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PS3 BiOS CXR713120-202GB Chip System Controller Details


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320w ago - Here is a translation of an ongoing project from Spanish developer DemonHades (linked above) courtesy of idone, detailing the PS3 BiOS chip being pulled and starting to be traced as follows:

For some time, we have been talking about the PlayStation 3 BiOS, and up to date there is no public info about the IC which does this job and the way it stores the information.

Here is a quick briefing of what we have done so far (pictures in sequence with the below text, spread across the three images below):

Pic #1: The reference of this IC is CXR713120-202GB.

Pics #2 & #3: Thanks to KnightSolidus we have these photos with the ways of this IC and some notes of connections references with colors.

Pic #4: The PLAYSTATION 3 BIOS is also known as SYSTEM CONTROLLER (SysCon)

Pic #5: As we can see in the image, SYSTEM CONTROLLER uses an SPI interface to communicate with the CELL eeprom, on which possibly it will know how to behave. We think it *might* be something interesting to work with.

Pic #6: Using this SPI interface, we can try to cause a livelock that would get us the checkstop.

Pic #7: Here we can see the CXR SYSTEM CONTROLLER, internal diagram. We believe that the UART port can be used for service operations, but we are still trying to get it to work.

Pics #8 & #9: Privileged mode - Here we can see the different types of priviledged modes.

PS3 BiOS CXR713120-202GB Chip System Controller Details

PS3 BiOS CXR713120-202GB Chip System Controller Details

PS3 BiOS CXR713120-202GB Chip System Controller Details

Stay tuned for more PS3 Hacks and PS3 CFW news, follow us on Twitter, Facebook and drop by the PS3 Hacks and PS3 Custom Firmware Forums for the latest PlayStation 3 scene and PlayStation 4 scene updates and fresh homebrew PS3 Downloads. Enjoy!
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Comments 13 Comments - Go to Forum Thread »

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#13 - DemonHades - 320w ago
DemonHades's Avatar
thx friends, is only a investigation of others have

The door its, the eeprom...

The cxr have:

spi cell be
spi rsx
jtag
uart

and others points check,status disk eject,wireles,etc...

How in psp use syscon for controller alls,is the same in ps3.

sorry for me english only talk 2month

1saludo

#12 - Starlight - 320w ago
Starlight's Avatar
Every little bit helps, nice to see and nice work.

#11 - MrFloppi - 320w ago
MrFloppi's Avatar
gonna say thanks here too... really awesome what people around the world are trying to open pandoras box ... keep up the great work guys! One day the ps3 might reveal a flaw in its security system...

one thing is for sure: hack this box and ur a legend

#10 - froka - 320w ago
froka's Avatar
Great news, good work guys.

#9 - tvdbz431 - 320w ago
tvdbz431's Avatar
Very nice to see that there are multiple groups working from different angles on getting the ps3 opened up.

#8 - footylad - 320w ago
footylad's Avatar
Just highlights the depth's that are required to hack this console, such good work by those guys keep it up! Better than most of the fake crap we see....

Footylad

#7 - kakarotoks - 320w ago
kakarotoks's Avatar
Quote Originally Posted by PS3 News View Post
I believe they are just Sony IBM (public) docs, not actual $CE leaks... those who need them do already have access to all the internal PlayStation 3 documentation but they aren't public/leaked yet.

Ok, thanks for the info!

#6 - PS4 News - 320w ago
PS4 News's Avatar
Quote Originally Posted by kakarotoks View Post
p.s: those documents look like official specs from sony, I suppose someone leaked that, is there any more info on the ps3 internals (complete document?)?

I believe they are just Sony IBM (public) docs, not actual $CE leaks... those who need them do already have access to all the internal PlayStation 3 documentation but they aren't public/leaked yet.

#5 - kakarotoks - 320w ago
kakarotoks's Avatar
Nice job! I like the openness of this information, it's great to see developers sharing info between them, keep the ps3dev news coming, I love them!

p.s: those documents look like official specs from sony, I suppose someone leaked that, is there any more info on the ps3 internals (complete document?)?

#4 - jevolution - 320w ago
jevolution's Avatar
nice to know that if we ever get unsigned code to run that otheros can be given full privileges by the simple change of a 0 to a 1.
(ref: hypervisor section in last image)

 

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