HAL2

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HAL2 contains data path and control logic to interface between HPC3 PBUS and audio devices. It has capability to interface up to five PBUS DMA channels providing real-time DMA streams simultaneously for two stereo audio codecs (Crystal CS4216), a digital audio interface transmitter (Crystal CS8401A), a digital audio interface receiver (Crystal CS8411) and an audio synthetizer (ICS1410).

Used by

It is used in SGI IP22 and IP28 (Indy, Indigo²) series.