Flash MCU tested to latest benchmarks

Infineon's XC167CI Flash microcontroller is the first 6bit device to be tested against the EEMBC 8/16bit microcontroller benchmark suite.

Infineon's XC167CI Flash microcontroller is the first 6bit device to be tested against the EEMBC 8/16bit microcontroller benchmark suite.

In out-of-the-box benchmark tests using the Keil V4.27 compiler, the 40MHz XC167CI achieved a MicroMark score of 5631 based on its performance in a range of automotive/industrial benchmark kernels tailored for 8 and 16bit devices.

Components of the MicroMark score include device performance in bit manipulation, memory access, pointer chasing, PWM, response to remote request (CAN), road-speed calculation and tooth-to-spark.

The 8/16bit microcontroller benchmarks also include a hand-coded, task-based benchmark suite that performs memory transfers, a checksum calculation, multiplication, UART data transfers, and shift operations typical of CRC and encryption algorithms, for which the XC167CI achieved a score of 474 iterations per second.

These certified scores can be put into perspective by viewing other published scores on the EEMBC website.

EEMBC President Markus Levy stated: "Although 8 and 16bit microcontrollers are oftentimes recognised for their wealth of on-chip peripherals, performance is critical for many applications.

EEMBC's microcontroller benchmark suite is a valuable tool for evaluating the behaviour of a microcontroller whether it is running at 32kHz or 40MHz".

Built using Infineon's C166V2 core and manufactured in a 0.22-micron process, the XC167CI features a five-stage pipeline that yields a twofold performance increase in comparison with Infineon's C167 microcontroller.

On-chip features of the XC167CI include a 128Kbyte advanced program Flash memory, a multiply-accumulate unit, a 16-priority-level interrupt system on eight group levels, up to 103 I/O lines, a twin CAN interface, two 16bit capture-compare modules, and a PWM unit for motor control applications.

"The XC167CI is the newest member of the popular C166 microcontroller family, which has a 10-year history of successful deployment and extensive applications support", said Stefan Wierzoch, Senior Marketing Manager for Automotive and Industrial Microcontrollers at Infineon.

"Based on the enhanced C166V2 architecture, the new-generation MCU doubles CPU performance compared with its predecessors.

Impressive DSP performance and advanced interrupt handling combined with a powerful, integrated peripheral set and high-performance, on-chip Flash or ROM memory make the XC167CI the instrument of choice for industrial and automotive applications".

A detailed benchmark score report on the XC167CI is available now from the 8/16bit microcontrollers area of the EEMBC website.

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