CA0189 is a highly-integrated, high-performance system-on-chip designed specifically for a range of lower end, cost-sensitive audio products. CA0189 provides more features and performance than any other available solution, at the lowest possible system cost. In addition, due to the use of an industry-standard processor, a wide range of off-the-shelf software is immediately available.

• 98.304 MHz ARCtangent A-5 RISC processor:
  • 8 Kb 4-way set associative instruction cache
  • 8 Kb load-store data ram
  • 2 Kb data cache
  • 32x32 fast hardware multiplier
  • 32-bit barrel shifter
  • JTAG debug port
• 8-channel DMA controller
• Extensive audio I/O support:
  • Dual switched XDIF (S/PDIF or C/DIF) inputs which support up to 96 KHz. programmable 20 or 24-bit audio word, w/HW sample rate tracking support, and NRZ user bit decoding.
  • Quad XDIF (S/PDIF or C/DIF) outputs which support 44.1, 48, 96 and 192kHz, programmable 20 or 24-bit audio word
  • 6 I2S inputs which supports 48, 96 and 192kHz, 24-bit (two of these inputs are muxed with GPIOs)
  • 6 I2S outputs which support 48, 96, and 192kHz 24-bit (two of these outputs are muxed with GPIOs)
• VUSB-HS USB 2.0 Device controller:
  • USB 1.1 backwards-compatible
  • 480 Mbits/second peak data rate
  • Embedded UTMI PHY
• 80 Kbytes on-chip scratchpad RAM
• 90 Kbytes on-chip program ROM
• Peripheral and Memory Bus I/F:
  • 16-bit data bus
  • 22-bit address bus
  • 3 chip selects, each with 2 Mb address range
  • RDY input for asynchronous peripheral interface
• Sample-rate conversion engine:
  • Integrated DMA engine
  • Auto-loading and storing of parameters
  • 8-tap FIR, 4x IIR downsampling
• IR remote control interface:
  • Creative-compatible IR receiver
  • Software-driven decoder for maximum flexibility
• 2 SPI interfaces
  • For control of D/As, A/Ds, ext. FM tuner, etc.
• 2 ARCtangent interrupt timer/counters:
  • Programmable interrupt rate
• 20 General-Purpose I/Os (GPIO):
  • 12 dedicated GPIO pins plus 8 additional muxed GPIO pins, described below
  • Individually programmable as input or output
  • 3 inputs can generate an interrupt to ARC
  • 4 GPIOs can be configured to operate as two EMU64 data-in and two data-out pins
  • 4 GPIOs can be configured to operate as two I2S inputs and two I2S outputs, bringing the total number of I2S interfaces up to six
• 5x5 matrix switch array support with no external hardware necessary, or 18x16 matrix switch array support with external shift registers required
  • Programmable hardware de-bounce
  • Support for 88 velocity-sensitive MIDI keys (with external shift registers)
• 2 RS-232 UARTs
• EMU64 serial audio data module capable of transmitting and receiving up to 64 channels of 24-bit audio data sampled at 48 kHz to an external effects engine or DSP
• Internal glitchless clock mux to select between one of three possible PLL reference clocks:
  • 24.576MHz oscillator for native 48kHz operation
  • 22.579MHz oscillator for native 44.1kHz operation
  • external S/PDIF clock source