TMP320C40KGDC, SMJ320C40KGDC, TMP320C40KGDCT, SMJ320C40KGDCT

FLOATINGPOINT DIGITAL SIGNAL PROCESSOR

KNOWN GOOD DIES

SGUS024C − MARCH 1997 − REVISED OCTOBER 2001

2

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251−1443

description (continued)

The features of the communication ports are:

D Six communication ports for direct interprocessor communication and processor I/O

D 20 MBps bidirectional interface on each communication port for high-speed and low-cost multiprocessor

interface

D Separate input and output first-in, first-out (FIFO) buffers for I/O and processor-to-processor

communication

D Automatic arbitration and handshaking for direct processor-to-processor connection

The DMA coprocessor allows concurrent I/O and CPU processing for superior sustained CPU performance.

The key features of the DMA coprocessor:

D Link pointers that allow DMA channels to auto-initialize

D Parallel CPU operation and DMA transfers

D Six DMA channels support communication-port-to-memory data transfers

The TMP/SMJ320C40KGD CPU is configured for high-speed internal parallel processing. The key features of

the CPU are:

D Eight operations/cycles

−

40- / 32-bit floating-point / integer multiply

−

40-/32-bit floating-point / integer arithmetic and logic unit (ALU) operation

−

Two data accesses

−

Two address-register updates

D IEEE floating-point conversion

D Division and square-root support

D ’C30 assembly language compatibility

D Byte and halfword accessibility

Key factors in a parallel-processing implementation are the development tools that are available. The ’C40 is

supported by a host of parallel-processing development tools for developing and simulating code and for

debugging parallel-processing systems. The code generation tools include:

D Optimizing ANSI C compiler with a runtime library that supports use of communication ports and DMA

D SPOX, by Spectron Microsystems Incorporated, which provides parallel processing support as well as

DMA and communication port drivers

D Assembler and linker with support for mapping program and data to parallel processors.

SPOX is a trademark of Spectron Microsystems, Inc.