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Features of SH-1/SH-2
 
High performance CPU with on-chip Flash
 
The SH7080 comes equipped with the latest 0.15µm F-ZTAT technology, and with a maximum operation frequency of 80MHz, both instructions and data can be accessed in one cycle. ( While on-chip flash memories from other companies also have operating frequencies of 80MHz and 100MHz, instruction branch time generates additional stalling and because data access takes several cycles, this has led to lower performance in some cases.) Also, with the on-chip flash memory's large capacity of 1MByte (8Mbits), programs which have heretofore been stored in external flash memory can now be stored in on-chip flash memory, and CPU performance of ten times or more can be demonstrated compared with existing technology.  
 
 
On-chip 32-bit multiplier
 
SH-2 with on-chip 32 bit multiplier can execute DSP functions with high speed.
 
The extension and addition of Multiply (DMULD, DMULU) and Multiply-accumulate instruction (MAC).
 
General-purpose register configuration
The SuperH RISC engine has 16 general-purpose registers. In typical control program, 16 registers cover 97% of function. Faster task change is possible than compared to the 32 general-purpose registers.   Used register by motor control program function

SuperH Core Licensing

Technical Information WEB Magazine
RENESAS EDGE

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