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furnace/papers/doc/7-systems/t6w28.md
tildearrow 2160b6e885 add T6W28 docs
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Toshiba T6W28

an enhanced SN76489 derivative. same 4 channels, but with stereo (soft panning!) and noise frequency being fully independent of channel 3's.

this chip was used in Neo Geo Pocket.

effects

  • 20xx: set noise mode.
    • 0: thin pulse.
    • 1: noise.