The ADSP-2189M is a single-chip microcomputer optimized
for digital signal processing (DSP) and other high speed numeric
processing applications.
The ADSP-2189M combines the ADSP-2100 family base architecture (three computational units, data address generators and a program sequencer) with two serial ports, a 16-bit internal DMA port, a byte DMA port, a programmable timer, Flag I/O, extensive interrupt capabilities, and on-chip program and data memory.
The ADSP-2189M integrates 192K bytes of on-chip memory configured as 32K words (24-bit) of program RAM and 48K words (16-bit) of data RAM. Power-down circuitry is also provided to meet the low power needs of battery operated portable equipment. The ADSP-2189M is available in a 100-lead LQFP package.
In addition, the ADSP-2189M supports new instructions, which include bit manipulations—bit set, bit clear, bit toggle, bit test—new ALU constants, new multiplication instruction (x squared), biased rounding, result free ALU operations, I/O memory transfers and global interrupt masking, for increased flexibility.
- Single-cycle instruction execution
- Single-cycle context switch
- 3-bus architecture allows dual operand fetches in every instruction cycle
- Multifunction instructions
- Power-down mode featuring low CMOS standby power
- Dissipation with 200 CLKIN cycle recovery from
- Power-down condition
- Low power dissipation in idle mode
- Two independent data address generators
- Powerful program sequencer provides zero overhead looping conditional instruction execution
- Programmable 16-bit interval timer with prescaler
- 100-Lead LQFP and 144-Ball Mini-BGA
- Six external interrupts
- 13 programmable flag pins provide flexible system signalling
- UART emulation through software SPORT reconfiguration
- ICE-Port™ emulator interface supports debugging in final systems
