Description
The Emotion Engine consists of eight separate "units", each performing a specific task, integrated onto the same die. These units are: a CPU core, two Vector Processing Units (VPU), a graphics interface (GIF), a 10 channel DMA unit, a memory controller, an Image Processing Unit (IPU) and an input output interface.
The CPU core is tightly coupled to the first VPU, VPU0. Together, they are responsible for executing game code and high-level modeling computations. The second VPU, VPU1, is dedicated to geometry-transformations and lighting and operates independently, parallel to the CPU core, controlled by microcode. VPU0, when not utilized, can also be used for geometry-transformations. Display lists generated are sent to the GIF, which prioritizes them before dispatching them to the Graphics Synthesizer for rendering.
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