Revolutionary Quad-Pipelined Ultra High Performance Microcontroller

The DQ8051CPU is an ultra high performance, speed optimized soft core of a single-chip 8-bit embedded controller, designed to operate with fast (typically on-chip) and slow (off-chip) memories. The core has been designed with a special concern about performance to power consumption ratio. This ratio is extended by an advanced power management unit PMU. The DQ8051CPU soft core is 100% binary-compatible with the industry standard 8051 8-bit microcontroller. The DQ8051CPU has a built-in configurable DoCD-JTAG on chip debugger, supporting Keil µVision development platform and standalone DoCD debug software. Dhrystone 2.1 benchmark program runs from 19.69 to 26.62 times faster than the original 80C51 at the same frequency. This performance can also be exploited to great advantage in low power applications, where the core can be clocked over ten times more slowly than the original implementation, with no performance penalty. The DQ8051CPU is fully customizable - it is delivered in the exact configuration to meet your requirements. There is no need to pay extra for not used features and wasted silicon.

The DQ8051CPU is delivered with fully automated testbench and complete set of tests, allowing easy package validation at each stage of SoC design flow.


Each of 8051 cores has a built-in support for Hardware Debug System, called DoCDTM. It is a real-time hardware debugger, which provides debugging capability of a whole System on Chip (SoC).

Unlike other on-chip debuggers, the DoCDTM provides non-intrusive debugging of running application. It can halt, run, step into or skip an instruction, read/write any contents of the microcontroller, including all registers, internal and external program memories, all SFRs, including user defined peripherals.

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