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Work RAM

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Revision as of 08:54, 10 July 2023 by Xetheria (talk | contribs) (make it clear that Nintendo recommends checking)
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The WRAM chip is straddling regions C1 and D1 in the jwdonal schematic

WRAM (Work RAM) serves as the SNES' main memory. It is 128K x 8 bits (131,072 bytes) in size. It has part number 21326. [3]

Even though WRAM has both Address Bus A and Address Bus B connected to it, the chip can only pay attention to one at a time, so WRAM-to-WRAM DMA isn't possible.

WRAM is left intact by a Reset. [2] But, Nintendo still recommendeds checking to make sure the contents are correct after a reset. [5]

References