Name
Title | ||
|---|---|---|
A 45-Nm 37.3 Gops/W Heterogeneous Multi-Core Soc With 16/32 Bit Instruction-Set General-Purpose Core |
Abstract | ||
|---|---|---|
We built a 12.4 mm x 12.4 mm, 45-nm CMOS, chip that integrates eight 648-MHz general purpose cores, two matrix processor (MX-2) cores, four flexible engine (FE) cores and media IP (VPU5) to establish heterogeneous multi-core chip architecture. The general purpose core had its IPC (instructions per cycle) performance enhanced by adding 32-bit instructions to the existing 16-bit fixed-length instruction set and executing up to two 32-bit instructions per cycle. Considering these five-to-seven years of embedded LSI and increasing trend of access-master within LSI, we predict that the memory usage of single core will not exceed 32-bit physical area (i.e. 4 GB), but chip-total memory usage will exceed 4 GB. Based on this prediction, the physical address was expanded from 32-bit to 40-bit. The fabricated chip was tested and a parallel operation of eight general purpose cores and four FE cores and eight data transfer units (DTU) is obtained on AAC (Advanced Audio Coding) encode processing. |
Year | DOI | Venue |
|---|---|---|
2011 | 10.1587/transele.E94.C.663 | IEICE TRANSACTIONS ON ELECTRONICS |
Keywords | Field | DocType |
heterogeneous, instruction set, MMU | 32-bit,Instructions per cycle,Single-core,System on a chip,Physical address,Instruction set,Computer science,16-bit,Computer hardware,Multi-core processor,Embedded system | Journal |
Volume | Issue | ISSN |
E94C | 4 | 1745-1353 |
Citations | PageRank | References |
0 | 0.34 | 3 |
Authors | ||
12 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Osamu Nishii | 1 | 59 | 14.00 |
| Yoichi Yuyama | 2 | 17 | 3.06 |
| Masayuki Ito | 3 | 0 | 0.34 |
| Yoshikazu Kiyoshige | 4 | 22 | 2.31 |
| Yusuke Nitta | 5 | 29 | 5.72 |
| Makoto Ishikawa | 6 | 23 | 4.26 |
| Tetsuya Yamada | 7 | 21 | 3.48 |
| Junichi Miyakoshi | 8 | 78 | 17.73 |
| Yasutaka Wada | 9 | 72 | 11.19 |
| Keiji Kimura | 10 | 120 | 23.20 |
| Hironori Kasahara | 11 | 285 | 44.35 |
| Hideo Maejima | 12 | 29 | 4.74 |