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| ppcirq = 2

| ppcirq = 2

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The GX2 is the Wii U's main graphics processor, semantically a part of the Latte despite being used directly by the [[Espresso]]. The chip is a member of the Radeon R7xx family {{ref label|ref-lt-f0f-2013|1}} (used in the Radeon HD 4330) clocked at 549.999775MHz.{{ref label|ref-clk-tweet|2}}. While documentation perfectly matching the card is yet to be found, several documents can be brought together to form a reasonable picture of the register layout.

The GX2 is the Wii U's main graphics processor, semantically a part of the [[Hardware/Latte|Latte]] despite being used directly by the [[Espresso]]. The chip is a member of the Radeon R7xx family {{ref label|ref-lt-f0f-2013|1}} (used in the Radeon HD 4330) clocked at 549.999775MHz.{{ref label|ref-clk-tweet|2}}. While documentation perfectly matching the card is yet to be found, several documents can be brought together to form a reasonable picture of the register layout.

 

The GX2 is only used in WiiUMode; in [[WiiMode]], the [[Hardware/GX|GX]] is used instead.

Reverse-engineering has revealed that the GX2's MMIO registers (referred to as ''GpuF0MMReg'' in AMD's docs) are at 0x0c200000; mapped at 0xfc200000 in [[Cafe OS]] userspace. The other MMIO locations (''GpuF0Pcie'', ''VGA_IO'') are not known at this point.

Reverse-engineering has revealed that the GX2's MMIO registers (referred to as ''GpuF0MMReg'' in AMD's docs) are at 0x0c200000; mapped at 0xfc200000 in [[Cafe OS]] userspace. The other MMIO locations (''GpuF0Pcie'', ''VGA_IO'') are not known at this point.