Overview
The ADSP-2185NBSTZ-320, produced by Analog Devices Inc., is a high-performance digital signal processor (DSP) that belongs to the ADSP-2100 family. This DSP combines advanced computational capabilities with extensive memory and interface features, making it suitable for a wide range of signal processing applications. The ADSP-2185 is code-compatible with the ADSP-2100 family but includes several instruction set extensions, enhancing its functionality and efficiency.
Key Specifications
| Specification | Value |
|---|---|
| Processor Type | DSP, Fixed-Point, 16-bit |
| Operating Frequency | 80 MHz |
| Performance | 80 MIPS |
| On-Chip Memory | 80K Bytes (16K Words Program Memory RAM, 16K Words Data Memory RAM) |
| Package Type | 100-pin TQFP |
| Interrupts | Up to 6 external, 7 internal |
| Serial Ports | Two synchronous serial ports (SPORT0 and SPORT1) |
| Timer | Programmable 16-bit interval timer with prescaler |
| DMA | 16-bit internal DMA port, 8-bit DMA to byte memory |
Key Features
- Computational Units: Independent ALU, multiplier/accumulator, and barrel shifter.
- Memory Interface: 4 MByte byte memory interface, I/O memory interface with 2048 locations.
- Serial Ports: Two complete synchronous serial ports (SPORT0 and SPORT1) with optional companding and various data transmit/receive modes.
- Interrupts: Up to six external interrupts and seven internal interrupts, with interrupt nesting and masking capabilities.
- Timer: Programmable 16-bit interval timer with prescaler.
- Flags and I/O: Up to 13 general-purpose flag pins, with programmable input/output configurations.
- Power Management: Low power dissipation in idle mode, power-down condition.
Applications
The ADSP-2185NBSTZ-320 is versatile and can be used in a variety of applications, including:
- Audio Processing: Audio encoding, decoding, and effects processing.
- Industrial Control: Real-time control systems, motor control, and automation.
- Medical Devices: Medical imaging, patient monitoring, and diagnostic equipment.
- Telecommunications: Modems, voice over IP, and other communication systems.
- Consumer Electronics: Set-top boxes, digital TVs, and other consumer electronic devices.
Q & A
- What is the operating frequency of the ADSP-2185NBSTZ-320?
The operating frequency of the ADSP-2185NBSTZ-320 is 80 MHz.
- How much on-chip memory does the ADSP-2185NBSTZ-320 have?
The ADSP-2185NBSTZ-320 has 80K Bytes of on-chip memory, configured as 16K words of program memory RAM and 16K words of data memory RAM.
- What types of serial ports does the ADSP-2185NBSTZ-320 have?
The ADSP-2185NBSTZ-320 has two complete synchronous serial ports (SPORT0 and SPORT1) with optional companding and various data transmit/receive modes.
- How many external interrupts can the ADSP-2185NBSTZ-320 handle?
The ADSP-2185NBSTZ-320 can handle up to six external interrupts and seven internal interrupts.
- What is the purpose of the programmable interval timer in the ADSP-2185NBSTZ-320?
The programmable interval timer generates periodic interrupts and can be configured using a 16-bit count register and an 8-bit scaling register.
- Can the ADSP-2185NBSTZ-320 support external memory?
Yes, the ADSP-2185NBSTZ-320 supports external memory through its byte memory and I/O memory interfaces, allowing access to up to four megabytes of external RAM or ROM).
- What is the package type of the ADSP-2185NBSTZ-320?
The ADSP-2185NBSTZ-320 is packaged in a 100-pin TQFP (Thin Quad Flat Package)).
- Does the ADSP-2185NBSTZ-320 support power management features?
Yes, the ADSP-2185NBSTZ-320 has low power dissipation in idle mode and a power-down condition).
- Can the ADSP-2185NBSTZ-320 be used in real-time applications?
Yes, the ADSP-2185NBSTZ-320 is suitable for real-time applications due to its high performance and advanced interrupt handling capabilities).
- Is the ADSP-2185NBSTZ-320 code-compatible with other ADSP-2100 family processors?
Yes, the ADSP-2185NBSTZ-320 is code-compatible with the ADSP-2100 family but includes several instruction set extensions).
