Overview
The ADSP-2185LBSTZ-210, 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 is part of the ADSP-218xL series, which combines the ADSP-2100 family base architecture with advanced features such as two serial ports, a 16-bit internal DMA port, and extensive interrupt capabilities. The ADSP-2185 is designed to provide high performance and flexibility, making it suitable for a wide range of applications, including audio processing, industrial control, and medical devices.
Key Specifications
| Parameter | Value |
|---|---|
| Instruction Cycle Time | 30 ns |
| Sustained Performance | 33 MIPS |
| On-Chip RAM | 80K bytes (16K words program RAM, 16K words data RAM) |
| Package Type | 100-Lead LQFP (14mm x 14mm) |
| Operating Temperature | -40°C to +85°C |
| Internal DMA Port | 16-bit internal DMA port for high-speed access to on-chip memory |
| Byte DMA Port | 8-bit DMA to byte memory for transparent program and data memory transfers |
| Serial Ports | Two synchronous serial ports (SPORT0 and SPORT1) |
| Programmable Timer | 16-bit interval timer with prescaler |
Key Features
- Single-cycle instruction execution and single-cycle context switch
- Three-bus architecture allowing dual operand fetches in every instruction cycle
- ADSP-2100 family code compatible with instruction set extensions
- Dual-purpose program memory for both instruction and data storage
- Independent ALU, multiplier/accumulator, and barrel shifter computational units
- Power-down mode with low CMOS standby power dissipation and 400 CLKIN cycle recovery
- Programmable memory strobe and separate I/O memory strobe
- Extensive interrupt capabilities and flag I/O
Applications
- Digital signal processing applications such as audio processing and filtering
- Industrial control systems requiring high-speed numeric processing
- Medical devices that need advanced signal processing capabilities
- Communication systems, including modems and other serial communication devices
- Embedded systems in various industries where high performance and low power consumption are critical
Q & A
- What is the instruction cycle time of the ADSP-2185?
The instruction cycle time of the ADSP-2185 is 30 ns.
- What is the sustained performance of the ADSP-2185?
The ADSP-2185 has a sustained performance of 33 MIPS.
- How much on-chip RAM does the ADSP-2185 have?
The ADSP-2185 has 80K bytes of on-chip RAM, configured as 16K words of program RAM and 16K words of data RAM.
- What type of package is the ADSP-2185 available in?
The ADSP-2185 is available in a 100-Lead LQFP package.
- What are the operating temperature ranges for the ADSP-2185?
The operating temperature range for the ADSP-2185 is -40°C to +85°C.
- Does the ADSP-2185 support serial communication?
Yes, the ADSP-2185 supports serial communication through two synchronous serial ports (SPORT0 and SPORT1).
- What is the purpose of the 16-bit internal DMA port in the ADSP-2185?
The 16-bit internal DMA port provides high-speed access to on-chip memory.
- Does the ADSP-2185 have power-saving features?
Yes, the ADSP-2185 has a power-down mode with low CMOS standby power dissipation and a 400 CLKIN cycle recovery from power-down condition.
- Is the ADSP-2185 compatible with other ADSP-2100 family members?
Yes, the ADSP-2185 is ADSP-2100 family code compatible with instruction set extensions.
- What computational units are integrated into the ADSP-2185?
The ADSP-2185 includes independent ALU, multiplier/accumulator, and barrel shifter computational units.
