CM8888 Datasheet, PDF (6/25 Pages) California Micro Devices Corp – CMOS INTEGRATED DTMF TRANCEIVER

Oxygen^TM Express-series CM8888
High-Performance PCI Express Audio Processor
Audio I/O
 Intel HD Audio Link supports 1 external HDA codec
 Six pairs of I²S serial audio output interfaces (12-ch out)
 Pair 1~4 use playback DMA#A
 Pair 5 uses playback DMA#B
 Pair 6 uses playback DMA#C
 Six pairs of I²S serial audio input interfaces (12-ch in)
 Pair 1~4 use recording DMA#A
 Pair 5 uses recording DMA#B
 Pair 6 uses recording DMA#C
 Integrated 192K/176.4K/96K/88.2K/48K/44.1K, and 16/24/32-bit S/PDIF transmitter with a 2-source
selector/mux (from playback DMA digital mixing, S/PDIF input), including WMA-Pro output support
 Integrated 192K/176.4K/96K/88.2K/48K/44.1K, and 16/24/32-bit S/PDIF receiver with 2-input
internal selector/switch for media center/AV receiver features
 Built-in MPU-401 MIDI UART I/O port for pro audio applications
 All input data can be mixed to output streams for low-latency record monitoring/mixing output
Control Interface
 SPI control interfaces with up to 8 external audio devices (5 output devices and 3 input devices)
 I²C Interface supports both master and slave modes (master for external audio devices and slave for
additional MCU applications such as remote controls)
 Interrupt pin for external MCU read transaction
 Serial EEPROM programming interface for customizing sub-vendor and sub-device IDs (and
vendor/device IDs as well), storing HDA power-on pin configuration data (replacing the MB BIOS
function) and 8051 ROM codes (HDA command transcoder)
 Maximum 8 jack-detection pins (5 for output jacks and 3 for input jacks)
 Maximum 16 GPIO pins for external devices control and other purposes
 LED indicator control pin functions while protected content is playing
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