Overview
The ADSP-2185MKST-300R, 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 advanced 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. It also integrates 80K bytes of on-chip memory, configured as 16K words of program RAM and 16K words of data RAM. The ADSP-2185MKST-300R is designed to meet the low power needs of battery-operated portable equipment and is available in a 100-lead LQFP package.
Key Specifications
| Specification | Value |
|---|---|
| Instruction Cycle Time @ 2.5 V (Internal) | 13.3 ns |
| Sustained Performance | 75 MIPS |
| On-Chip Memory | 80K bytes (16K words of 24-bit program RAM, 16K words of 16-bit data RAM) |
| Package Type | 100-lead LQFP |
| Computational Units | ALU, Multiplier/Accumulator (MAC), and Barrel Shifter |
| Data Address Generators | Two dedicated DAGs |
| Serial Ports | Two independent serial ports (SPORT0 and SPORT1) |
| Internal DMA Port | 16-bit internal DMA port |
| Programmable Timer | 16-bit interval timer with prescaler |
| Power-Down Mode | Low CMOS standby power dissipation with 200 CLKIN cycle recovery |
Key Features
- High Performance: 13.3 ns instruction cycle time and 75 MIPS sustained performance.
- Single-Cycle Instruction Execution: Supports single-cycle instruction execution and single-cycle context switch.
- 3-Bus Architecture: Allows dual operand fetches in every instruction cycle.
- Computational Units: Includes an ALU, a multiplier/accumulator (MAC), and a barrel shifter, supporting multiprecision computations.
- Data Address Generators: Two dedicated data address generators (DAGs) for efficient operand delivery.
- Program Sequencer: Powerful program sequencer with zero overhead looping and conditional instruction execution.
- Serial Ports and DMA: Two independent serial ports and a 16-bit internal DMA port for high-speed data transfer.
- Programmable Timer and Interrupts: 16-bit interval timer with prescaler and extensive interrupt capabilities).
- Low Power Mode: Low CMOS standby power dissipation with quick recovery from power-down condition).
Applications
- Digital Signal Processing: Optimized for various DSP applications such as audio processing, image processing, and telecommunications).
- High-Speed Numeric Processing: Suitable for applications requiring high-speed numeric computations, such as scientific simulations and data analysis).
- Portable Equipment: Designed to meet the low power needs of battery-operated portable equipment, making it ideal for handheld devices and mobile applications).
- Embedded Systems: Can be used in embedded systems that require efficient data processing and low power consumption, such as industrial control systems and medical devices).
Q & A
- What is the instruction cycle time of the ADSP-2185MKST-300R at 2.5 V?
The instruction cycle time is 13.3 ns at 2.5 V).
- What is the sustained performance of the ADSP-2185MKST-300R?
The sustained performance is 75 MIPS).
- How much on-chip memory does the ADSP-2185MKST-300R have?
The device has 80K bytes of on-chip memory, configured as 16K words of 24-bit program RAM and 16K words of 16-bit data RAM).
- What types of computational units are included in the ADSP-2185MKST-300R?
The device includes an ALU, a multiplier/accumulator (MAC), and a barrel shifter).
- How many serial ports does the ADSP-2185MKST-300R have?
The device has two independent serial ports (SPORT0 and SPORT1)).
- What is the purpose of the data address generators in the ADSP-2185MKST-300R?
The two dedicated data address generators (DAGs) provide addresses for simultaneous dual operand fetches from data memory and program memory).
- Does the ADSP-2185MKST-300R support low power modes?
Yes, it features low CMOS standby power dissipation with quick recovery from power-down condition).
- What is the package type of the ADSP-2185MKST-300R?
The device is available in a 100-lead LQFP package).
- Can the ADSP-2185MKST-300R be used in embedded systems?
Yes, it is suitable for use in embedded systems requiring efficient data processing and low power consumption).
- What are some common applications of the ADSP-2185MKST-300R?
Common applications include digital signal processing, high-speed numeric processing, portable equipment, and embedded systems).
