1.2.4 RDRAM (N64 Main Memory)

RDRAM is the N64 main memory. It provides a total of 4 megabytes by 9 bits of memory in two chips of 2 megabytes each. The CPU and the RCP processing chips share all available RDRAM as shown in the following illustration:

Illustration


Features of RDRAM

RDRAM Block Definition

As a game developer, you can map RDRAM as appropriate for each game application. Usually the following buffers and areas are specified in RDRAM:

Illustration