New Hitachi SH3-DSP Micro/DSP Core

		Hitachi Introduces New Core: SH3-DSP DSP/Microcontroller

	Company:	Hitachi Semiconductor
	Category:	Microcontroller Cores (new core)
	Date:	15-Oct-1998

	Brisbane, California (microcontroller.com) - Hitachi Semiconductor introduced a new microcontroller core, the SH3-DSP. This new core combines the functionality of Hitachi's SuperH^TM SH3 RISC core with specific digital signal processor (DSP) features. The first addition to the SH3-DSP family, the SH7729, code named ArrowHead, is targeted for communications applications (communications applications are typically served by a DSP) that also need to perform the control-oriented tasks of a microcontroller. Examples of target applications include IP telephony devices, network access appliances, mobile products, cable modems, and residential gateways. Features Core: SH3-DSP Architecture: Load/Store, big-endian or little-endian selectable 0.25µ TLM CMOS Process 32-bit internal data path Most instructions execute in one cycle 32/16/8-bit external bus 448MB address space 66MHz external bus speed 133MHz internal clock speed up to 16Kb cache 16- and 32-bit DSP instructions, capable of 16, 24, 32, and 40-bit results 32-bit MAC unit DSP extensions include parallel operations, operand with condition, zero overhead loop control, and additional system control instructions. Barrel Shifter (shift instructions require only one cycle) X/Y RAM Spaces Supported by Microsoft's upcoming Windows CE operating system and Visual Studio tools kit (due 1999) Features p/n: SH7729 SH3-DSP 32-bit RISC Core - Register-based architecture 1.8V Core, 3.3V I/O PLL 133MHz internal/66MHz external clocks Power down modes MMU w/16Gbytes address space 16Kbyte cache 8Kbyte X-RAM / 8Kbyte Y-RAM 3-channel 32-bit autoreload timer RTC with 32KHz external crystal Three SCIs 4-channel DMA 8-channel 10-bit A/D, ±4 LSB accuracy, 10µsec conversion time 2-channel 8-bit D/A, ±4 LSB accuracy, 10µsec conversion time Seven external interrupt pins External DRAM Support JTAG interface Real-time branch address trace capability 209-pin LQFP Package Pricing and Availability Available December 1998, est. $29 @ 10Ku quantities For more information on this product, contact Hitachi Semiconductor. Code Compatibility The SH3-DSP is object code compatible with Hitachi's SH1, SH2, and SH3 cores. Development Tools Hitachi SH3-DSP cores will be supported by the following development tool suppliers: In-circuit emulators: HP, Orion Compilers: Hitachi, Green Hills Real-Time Operating Systems: Accelerated Technologies, Wind River Systems

Microcontrollers for Embedded Systems Designers

Hitachi Introduces New Core: SH3-DSP DSP/Microcontroller

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