Overview
The ADSP-2186M, produced by Analog Devices Inc., is a single-chip microcomputer optimized for digital signal processing (DSP) and other high-speed numeric processing applications. This device combines the ADSP-2100 family base architecture with additional features such as two serial ports, a 16-bit internal DMA port, a byte DMA port, a programmable timer, Flag I/O, and extensive interrupt capabilities. The ADSP-2186M is designed to meet the low power needs of battery-operated portable equipment and is available in 100-lead LQFP and 144 Ball Mini-BGA packages.
Key Specifications
| Specification | Value |
|---|---|
| Instruction Cycle Time | 13.3 ns @ 2.5 V (Internal), 75 MIPS Sustained Performance |
| Supply Voltage | 2.5 V with 3.3 V I/O |
| On-Chip Memory | 40K bytes: 8K words (24-bit) of program RAM, 8K words (16-bit) of data RAM |
| Internal DMA Port | 16-bit internal DMA port for high-speed access to on-chip memory |
| Serial Ports | Two double-buffered serial ports with companding hardware and automatic data buffering |
| Package Options | 100-lead LQFP, 144 Ball Mini-BGA |
| Power Consumption | Low CMOS standby power dissipation, 200 CLKIN cycle recovery from power-down condition |
Key Features
- Single-cycle instruction execution and single-cycle context switch
- Three-bus architecture allowing dual operand fetches in every instruction cycle
- Multifunction instructions and power-down mode with low CMOS standby power dissipation
- ADSP-2100 family code compatible with instruction set extensions
- Automatic booting of on-chip program memory from byte-wide external memory or through internal DMA port
- Six external interrupts and 13 programmable flag pins for flexible system signaling
- UART emulation through software and SPORT reconfiguration
- ICE-Port™ emulator interface for debugging in final systems
Applications
The ADSP-2186M is suited for a variety of high-speed numeric processing and digital signal processing applications, including:
- Digital signal processing in audio, image, and video systems
- Telecommunications and networking equipment
- Medical imaging and diagnostic equipment
- Aerospace and defense systems
- Industrial control and automation systems
Q & A
- What is the instruction cycle time of the ADSP-2186M?
The instruction cycle time is 13.3 ns at 2.5 V, providing 75 MIPS sustained performance.
- What types of memory does the ADSP-2186M have?
The ADSP-2186M has 40K bytes of on-chip memory, configured as 8K words (24-bit) of program RAM and 8K words (16-bit) of data RAM.
- What are the package options for the ADSP-2186M?
The ADSP-2186M is available in 100-lead LQFP and 144 Ball Mini-BGA packages.
- Does the ADSP-2186M support power-down modes?
Yes, the ADSP-2186M features a power-down mode with low CMOS standby power dissipation and a 200 CLKIN cycle recovery from power-down condition.
- What are the key features of the serial ports on the ADSP-2186M?
The serial ports are double-buffered with companding hardware and automatic data buffering.
- Is the ADSP-2186M compatible with other ADSP-2100 family devices?
Yes, the ADSP-2186M is ADSP-2100 family code compatible with instruction set extensions.
- What is the purpose of the ICE-Port™ emulator interface?
The ICE-Port™ emulator interface supports debugging in final systems.
- What types of interrupts does the ADSP-2186M support?
The ADSP-2186M supports six external interrupts and has extensive interrupt capabilities.
- Can the ADSP-2186M emulate UART functionality?
Yes, the ADSP-2186M can emulate UART functionality through software.
- What is the significance of the three-bus architecture in the ADSP-2186M?
The three-bus architecture allows dual operand fetches in every instruction cycle, enhancing performance.
