| Presentation | 2004-10-22 Small-Code-Size and Low-Latency Microcontroller Core for Automotive, Industrial, and PC-Peripheral Applications Yasuo SUGURE, Seiji TAKEUCHI, Yuichi ABE, Hiromichi YAMADA, Kazuya HIRAYANAGI, Akihiko TOMITA, Kesami HAGIWARA, Takashi KATAOKA, Takanori SHIMURA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A 32-bit embedded RISC microcontroller core targeted for automotive, industrial, and PC-peripheral applications has been developed to offer the smaller code size, lower-latency instruction and interrupt processing. The core achieved 360MIPS and 400MFLOPS at 200MHz measured using Dhrystone 1.1. For smaller code size, new instructions have been added to the instruction set. These new instructions, as well as an enhanced C compiler, produce object files about 25% smaller than those for a previous designed core. A dual-issue superscalar structure consisting of three- or five-stage pipelines provides instruction processing with low latency. The cycle performance is an average of 1.8 times faster than the previous designed core. The superscalar structure and the register bank are used to save CPU registers to the resister bank in parallel when executing interrupt processing. This structure significantly improves interrupt response time from 37 cycles to 6 cycles. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Microcontroller / RISC / Smaller code size / Low-latency / Interrupt response time |
| Paper # | SIP2004-93,ICD2004-125,IE2004-69 |
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| Conference Information | |
| Committee | ICD |
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| Conference Date | 2004/10/15(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Integrated Circuits and Devices (ICD) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Small-Code-Size and Low-Latency Microcontroller Core for Automotive, Industrial, and PC-Peripheral Applications |
| Sub Title (in English) | |
| Keyword(1) | Microcontroller |
| Keyword(2) | RISC |
| Keyword(3) | Smaller code size |
| Keyword(4) | Low-latency |
| Keyword(5) | Interrupt response time |
| 1st Author's Name | Yasuo SUGURE |
| 1st Author's Affiliation | Central Research Laboratory, Hitachi Ltd.() |
| 2nd Author's Name | Seiji TAKEUCHI |
| 2nd Author's Affiliation | Renesas Technology Corp. |
| 3rd Author's Name | Yuichi ABE |
| 3rd Author's Affiliation | Hitachi Research Laboratory, Hitachi Ltd. |
| 4th Author's Name | Hiromichi YAMADA |
| 4th Author's Affiliation | Hitachi Research Laboratory, Hitachi Ltd. |
| 5th Author's Name | Kazuya HIRAYANAGI |
| 5th Author's Affiliation | Renesas Technology Corp. |
| 6th Author's Name | Akihiko TOMITA |
| 6th Author's Affiliation | Renesas Technology Corp. |
| 7th Author's Name | Kesami HAGIWARA |
| 7th Author's Affiliation | Renesas Technology Corp. |
| 8th Author's Name | Takashi KATAOKA |
| 8th Author's Affiliation | Renesas Technology Corp. |
| 9th Author's Name | Takanori SHIMURA |
| 9th Author's Affiliation | Central Research Laboratory, Hitachi Ltd. |
| Date | 2004-10-22 |
| Paper # | SIP2004-93,ICD2004-125,IE2004-69 |
| Volume (vol) | vol.104 |
| Number (no) | 366 |
| Page | pp.pp.- |
| #Pages | 6 |
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