ST10F272M_12 datasheet(46/176 Pages) STMICROELECTRONICS

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ST10F272M Datasheet(PDF) 46 Page - STMicroelectronics

Part #	ST10F272M

Description	16-bit MCU with 256 Kbyte Flash memory and 20 Kbyte RAM

PDF	176 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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46 / 176 page

Central processing unit (CPU)

ST10F272M

46/176

Doc ID 12968 Rev 3

7.1

Multiplier-accumulator unit (MAC)

The MAC co-processor is a specialized co-processor added to the ST10 CPU core in order

to improve the performances of the ST10 family in signal processing algorithms.

The standard ST10 CPU has been modified to include new addressing capabilities which

enable the CPU to supply the new co-processor with up to 2 operands per instruction cycle.

This new co-processor (so-called MAC) contains a fast multiply-accumulate unit and a

repeat unit.

The co-processor instructions extend the ST10 CPU instruction set with multiply, multiply-

accumulate, 32-bit signed arithmetic operations.

Figure 8.

MAC unit architecture

Shared with standard ALU

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