ADSP-2192M

The ADSP-2192M is a single-chip microcomputer optimized for digital signal processing (DSP) and other high speed numeric processing applications, and is ideally suited for PC peripherals.

The ADSP-2192M combines the ADSP-219x family base architecture (three computational units, two data address generators and a program sequencer) into a chip with two core processors (see the Functional Block Diagram on Page 1 and Figure 1).

The ADSP-2192M includes a PCI-compatible port, a USBcompatible port, an AC'97-compatible port, a DMA controller, a programmable timer, general-purpose Programmable Flag pins, extensive interrupt capabilities, and on-chip program and data memory spaces.

The ADSP-2192M integrates 132K words of on-chip memory configured as 32K words (24-bit) of program RAM, and 100K words (16-bit) of data RAM. power-down circuitry is also provided to reduce power consumption. The ADSP-2192M is available in a 144-lead LQFP package.

Fabricated in a high speed, low power, CMOS process, the ADSP-2192M operates with a 6.25 ns instruction cycle time (320 MIPS) using both cores. All instructions can execute in a single DSP cycle.

The ADSP-2192M's flexible architecture and comprehensive instruction set support multiple operations in parallel. For example, in one processor cycle, each DSP core within the ADSP-2192M can:
• Generate an address for the next instruction fetch
• Fetch the next instruction
• Perform one or two data moves
• Update one or two data address pointers
• Perform a computational operation
These operations take place while the processor continues to:
• Receive and/or transmit data through the Host port (PCI or USB interfaces)
• Receive or transmit data through the AC'97
• Decrement the two timers