Most powerful mini-8051?
Polish IP firm Digital Core Design has put an 8051 CPU into under 3,000 asic gates, claiming it to be the most powerful at this size.
“A very low gate count area allows as well to run the core at high performance, up to 300MHz in Hynix 0.18µm library, equivalent performance to the original 80C51 clocked with 2.4GHz”, said DCD.
With DCD’s DT8051 “The complete system with peripherals and the debugger needs just 6,650 asic gates,” said the firm. “Regarding 32bit ARM cores, when even a plain M0 uses more than 10,000 gates.”
The soft core is 100% binary-compatible with the industry standard 8051, said DCD and Dhrystone 2.1 benchmarking indicates that it is 8.1x faster than the original 80C51 at the same frequency.
“The performance results are more than 2 times higher than the nearest competitive designs.
DT8051 includes a two wire on-chip debugger, up to eight external interrupt sources, a power management unit, timers 0 and 1, I/O bit addressable ports, full duplex UART and interface for external SFR.
On 90nm asic: 6,650 gates, 130MHz, equivalent to original 8051 at 1GHz
Stratix-III: 1,508 ALUTs, 210MHz, 1.7GHz equivalent
Virtex-5: 625 slices, 200MHz, 1.6GHz equivalent
80C51: 197 Dhry/s@12MHz, 0.0094DMips/MHz
DT8051: 1,597 Dhry/s@12MHz, 0.0763 DMips/MHz