Palette RAM

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File:Aes palram.jpg
CXK5864 8KiB RAM chips as palette RAM in a AES system
CXK5864 8KiB RAM chips as palette RAM in a MV2F system
BR6265BF 8KiB RAM chip as half of palette RAM in a MV1AX system

Palette RAM is 16KiB (2 banks of 256 palettes of 16, 16bit colors), it contains color data for each palette.

It is accessible directly from the 68k memory space at any time. Pixels with incorrect colors may show if accessed during active display.

Speed

Should be 120ns or less (3mclk). Example: CXK5864BSP-10L is 100ns