IP3023 remains the Echelon's Neuron Chip (to an extent...)
(«Телесистемы»: Конференция «Микроконтроллеры и их применение»)

миниатюрный аудио-видеорекордер mAVR

Отправлено AK 19 июня 2003 г. 04:14
В ответ на: Абсолютно разные вещи отправлено BLACKEAGLE 18 июня 2003 г. 19:58

The IP3023 is a 250 MIPS 32-bit CPU supporting eight-way
multithreaded operation. It provides for up to eight real-time
tasks to execute in a completely deterministic fashion. In
essence, the IP3023 supports running a different thread on
every clock, but without the overhead for context switching
typical with traditional microprocessor architectures. To the
system designer, the IP3023 appears as if there were 8
processors on the chip.

The CPU is a general-purpose 32-bit pipelined processor.
The CPU implements multithreading in hardware and
supports the execution of deterministic hard real-time
HRT) threads. Up to eight simultaneous threads are
supported in hardware. Attached to the core are a 256KB
instruction SRAM and a 64 KB data SRAM. The core also
has access to an off-chip flash memory for code storage
and booting. Code for the processing core is written in C
as well as in assembly language.

The IP3023 device has advanced in-system programming
and debug support on-chip. This unobtrusive capability is
provided through an SPI interface. There is no need for a
bond-out chip for software development. This eliminates
concerns about differences in electrical characteristics
between a bond-out chip and the actual chip used in the
target application. Designers can test and revise code on
the same part used in the actual application.

Ubicom provides the complete Red Hat GNUPro tools,
including C compiler, assembler, linker, utilities and GNU
debugger. In addition, Ubicom offers an integrated
graphical development environment which includes an
editor, project manager, graphical user interface for the
GNU debugger, device programmer, and ipModule
configuration tool.

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