Overview
The ADSP-2185NKSTZ-320 is a member of the ADSP-218xN series of digital signal processors (DSPs) manufactured by Analog Devices Inc. This series is optimized for digital signal processing applications and offers high performance and low power consumption. The ADSP-2185N specifically features 16K words of program memory and 16K words of data memory, making it a versatile choice for various embedded systems.
Key Specifications
| Specification | Value |
|---|---|
| Instruction Cycle Time | 12.5 ns @ 1.8 V (Internal) |
| Sustained Performance | 80 MIPS |
| On-Chip Memory | Up to 16K words Program Memory, Up to 16K words Data Memory |
| Package Type | 100-Lead LQFP (14mm x 14mm) |
| Operating Voltage | 1.8 V, with tolerance up to 3.6 V on inputs |
| Serial Ports | Two double-buffered serial ports with companding hardware |
| Interrupts | Six external interrupts, seven internal interrupts |
| Timer | 16-bit programmable interval timer |
| Power Consumption | Low power dissipation in idle mode, power-down mode with low CMOS standby power |
Key Features
- Single-cycle instruction execution and single-cycle context switch
- Three-bus architecture allowing dual operand fetches in every instruction cycle
- Independent ALU, multiplier/accumulator, and barrel shifter computational units
- Programmable 16-bit interval timer with prescaler
- Flexible I/O allowing 1.8 V, 2.5 V, or 3.3 V operation
- 16-bit internal DMA port and 8-bit DMA to byte memory
- Programmable memory strobe and separate I/O memory space
- ICE-Port™ emulator interface for debugging
- UART emulation through software SPORT reconfiguration
Applications
The ADSP-2185NKSTZ-320 is suitable for a wide range of digital signal processing applications, including audio processing, image processing, and telecommunications. Its high performance and low power consumption make it an ideal choice for embedded systems that require efficient signal processing capabilities.
Q & A
- What is the instruction cycle time of the ADSP-2185NKSTZ-320?
The instruction cycle time is 12.5 ns at 1.8 V. - How much on-chip memory does the ADSP-2185N have?
The ADSP-2185N has up to 16K words of program memory and up to 16K words of data memory. - What types of packages are available for the ADSP-2185NKSTZ-320?
The ADSP-2185NKSTZ-320 is available in a 100-Lead LQFP package. - What is the operating voltage range of the ADSP-2185NKSTZ-320?
The operating voltage is 1.8 V, with input tolerance up to 3.6 V. - How many serial ports does the ADSP-2185NKSTZ-320 have?
The ADSP-2185NKSTZ-320 has two double-buffered serial ports with companding hardware. - What is the power consumption characteristic of the ADSP-2185NKSTZ-320?
The ADSP-2185NKSTZ-320 features low power dissipation in idle mode and a power-down mode with low CMOS standby power. - Does the ADSP-2185NKSTZ-320 support debugging?
Yes, it supports debugging through the ICE-Port™ emulator interface. - Can the ADSP-2185NKSTZ-320 be used for UART emulation?
Yes, it can emulate UART through software SPORT reconfiguration. - How many external interrupts does the ADSP-2185NKSTZ-320 support?
The ADSP-2185NKSTZ-320 supports six external interrupts. - What is the purpose of the programmable interval timer in the ADSP-2185NKSTZ-320?
The programmable interval timer generates periodic interrupts and can be configured using a 16-bit count register and an 8-bit scaling register.
