- We have explored
most of the internals of the PS3 TOOL, with world-exclusive pictures, not too many people are willing let alone crazy enough to open one of these beasts!
Now we start getting to the more interesting aspects of the TOOL, and what makes it different from everything else.
The Communication Processor, or CP is a small, embedded computer, inside the PS3 TOOL. Essentially, it is a totally separate system, isolated from the PS3 side of the system.
For a little bit of history, the PS2 TOOL worked the same way, there was a small, embedded computer on a PCI card inside of the PS2 TOOL, it facilitated communication between the hardware (PS2) and a PC.
Of note, the PSP TOOL is somewhat similar, however the CP is embedded on the mainboard, vs on a card (like the PS2/PS3). The same principle applies to the PS3 TOOL, the CP handles all communication between the PS3 side of the PS3 TOOL, and a networked PC.
So, the CP makes the PS3 TOOL "special" as it allows the debugger to tap into hardware lines on the system itself, to get more debug output, among other things.
Starting from the top of the picture (below), the CP has a connector, labelled CN5001 - this connects to a RJ-45 jack, and a RS-232 jack on the TOOL...