PIC15C54C is listening to CPU data bus and probably feeding some instructions to the CPU and causing short-circuits of VCC to GND, using the mosfet, to glitch the CIC, just like in. I've done it at least once with each of my carts, but I'm hoping to never need to do it again. So CPU-RW has a pull-up resistor, I guess?Īlso, dumping aladdin carts with a Kazzo is very finicky because of the Reset control circuitry. The node labeled VCC above R2 in krzysiobal's diagram is actually CPU-RW (by way of CCU-12, which is also CPU-RW). CHR-RAM still gets direct VCC.Īnd to clarify CCU-7/12. I'm open to being corrected, though.Īlso, most of the VCC labels in my notes are actually on the other side of the Didoes (call it VCC*, I guess), not direct connections to VCC. They are not connected to GND, but are connected to each other).Īll pins are currently connected to what I assume are address pins on the ROMs, so unless the CCU supports another mode where it changes whichever of 15/24/16 is A14 (I assume), 32K isn't possible. On Aladdin V2, GCart 32 is not GND, but is ALADDIN V2 (PIC) pin 2, not GND (I labeled both ends of these "GND?" in my notes. I'm assuming the 7 lines it generates are (not certain on bit order within groups):ĬCU 15/24/16 - GCart 23/33/34 - $C000.0/1/?Īlso, one correction from above. I don't think 32KB banking is possible either as CPU-A14 is not passed to the Aladdin game cart, unless the CCU can be put in some alternate mode. And I think I hit the limit on attachments on the previous post, which is why this didn't show up:ĬIRAM-A10 is directly connected to PPU-A10, so no mirroring control. They're conditioned somehow (didn't finish exploring)? 7 looks like VCC, but VCC and GND throughout the circuit appear to not be direct connects to the NES cart connector. 21 doesn't seem to be connected to anything on V2 (nothing goes to CIC MB or CIC pak. I should have also marked 16, 18, 20 and 24 as confirmed as well. The other dashes on CCU were all confirmed to match his. Those were the corrections from the guesses made by krzysiobal, in addition to the ones for CCU 12,13,14. The dashes in the GN/GQ table in the GQ column mean they are the same for both.Īlso, the scribbles on the left of the column at the bottom belong to the rows they're pointing to, and could have been added to the CCU table. The two left columns for the GN/GQ table are just because I initially numbered the connector differently than krzysiobal. I probably should have transcribed it myself, but I was feeling lazy.
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