TMS320C44

DIGITAL SIGNAL PROCESSOR

SPRS031B – AUGUST 1994 – REVISED DECEMBER 1995

12

POST OFFICE BOX 1443

description

The TMS320C44 DSP is a 32-bit, floating-point processor manufactured in 0.72-

µm double-level-metal CMOS

technology. The TMS320C44 is part of the TMS320C4x generation of DSPs from Texas Instruments. The

on-chip parallel-processing capabilities of the ’C44 make the immense floating-point performance required by

many applications achievable.

operation

The ’320C44 has four on-chip communication ports for processor-to-processor communication with no external

hardware and simple communication software. This allows connectivity with no external-glue logic. The

communication ports remove input / output bottlenecks, and the independent smart 6-channel DMA

coprocessor is able to handle the CPU input / output burden.

To fit the ’320C40 into a 304-pin PQFP package ( thermally enhanced plastic quad flatpack), two communication

ports are removed and the external local and global address buses are reduced to 24 address lines each. In

this case, both the bond pads and driver circuits are removed, decreasing die size and power consumption.

Otherwise, functionality remains the same as the rest of the ’320C4x family.

The communication-port token and data-strobe control lines are internally connected to avoid spurious data,

boot-up, and power consumption problems.