Talk:Texas Instruments SN76489

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Wrong pinout[edit]

The /OE pin in the pinout diagram is actually a chip enable, and is marked "/CE" in the chip's datasheet.

How did the stereo work?[edit]

"Game Gear's version includes an extension for stereo audio output"

Was this controllable within the chip, meaning that one could (for instance) set channel 1 to be on the left and channel 2 on the right? Or is this simply two outputs of the same sound to (slightly) simplify the downstream electronics? If the first case (which I suspect), were there additional registers to control this?

Maury Markowitz (talk) 15:25, 11 May 2018 (UTC)[reply]

I'm not sure on the technical side, but stereo wasn't controlled by the end user, the Game Gear just offered an option to composers to hard-pan the two channels across the speakers. This can be heard by checking out the MS/GG VGM sets for one of the Sonic games (I think Sonic 2). ~ Dissident93 ^(talk) 19:57, 11 May 2018 (UTC)[reply]