DAC A+D Mirror (mono) Register

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Revision as of 10:43, 14 October 2025 by Xalior (talk | contribs) (Xalior moved page DAC A+D (mono) mirror Register to DAC A+D Mirror (mono) Register: match formal nextreg.txt name)
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Number TBRegisterNumber::$2D
Readable TBRegisterReadable::Yes
Writable TBRegisterWritable::Yes
Short Description ShortDesc::SpecDrum port 0xDF / DAC A+D mirror, read current I2S LSB

This port can be used to generate mono audio using the copper.

Write:

bits 7:0 = 8-bit sample written to DACs A and D (soft reset = $80)

Read:

bits 7:0 = LSB of last I2S (Pi:NextPi) sample read from {{#ask: TBRegisterNumber::$2C }} ($2C) or {{#ask: TBRegisterNumber::$2E }} ($2E)