The hardware divider (HDIV) can use hardware circuit to perform division operation directly. Software is not required to translate division instructions into a large number of alternative operation instructions. In the applications requiring high degree of numerical computation, such as sensor value reading/writing and analysis, the HDIV can increase the computing capacity of the CPU and reduce the operation time.

In the NuMicro® Family, the series embedded with Cortex®-M4 core are equipped with Arithmetic Logic Unit (ALU) that supports hardware division, which supports SDIV and UDIV instructions for 32-bit Signed and Unsigned division operation. Depending on the numeral of the dividend and the divisor, the operation can be completed in 2 to 12 HCLK cycles.

Since the Arithmetic Logic Unit (ALU) in the Cortex®-M0 core does not support hardware division, the series with the Cortex®-M0 core cannot support hardware division. However, the peripheral in the M051 DN/DE series specifically includes a HDIV to meet user needs of high-speed computing. The HDIV in the M051 DN/DE series can perform 32-bit dividend and 16-bit divisor Signed and Unsigned division operation. Each calculation requires 6 HCLK cycles.

NuMicro® Family Series with Hardware Divider
Cortex®-M0	Cortex®-M4
M051 DN/DE Series	NUC472/442 Series
M0519 Series	M451 Series
NM1200 Series	NUC505 Series
NM1500 Series

Products:	Microcontrollers ,Arm Cortex-M0 MCUs ,M051 Base Series ,Arm Cortex-M4 MCUs ,M451 Base Series ,M451M Series ,M452 USB Series ,M453 CAN Series ,NUC442/472 Series ,NUC505 Series
Applications:
Function:	Peripherals,ARM,Cortex-M4

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What is the advantage of Hardware divider (HDIV)? Which series in the NuMicro® Family can support HDIV? Issue Date：2015-08-13

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