Fabless semiconductor company Panthronics, specialising in high-performance wireless technology, has joined forces with Renesas Electronics Corporation on a new design for secure mobile point-of-sale (mPoS) contactless payment terminals. The design offers a reduced size and bill-of-materials of OEMs' products. The design is based on Panthronics’ PTX100R NFC Reader IC for contactless communication, and the Renesas RA6M4 general-purpose secure microcontroller (MCU). The RA6M4 MCU, which has an Arm Cortex-M33 CPU with TrustZone technology and integrated security IP, performs all the cryptographic, key management and other security functions required for compliance with the stringent Payment Card Industry (PCI) security standards and the EMVCo Level 2 standard for contactless payments. EMVCo Level 1-compliant software runs in the PTX100R. This design based on a secure MCU offers substantial cost and size advantages over conventional mPoS terminal designs. Today, mPoS terminals feature either a combination of a general-purpose MCU with a discrete Secure Element, or a dedicated PoS-specific system-on-chip (SoC) with built-in security functions. The Panthronics/Renesas solution is superior to both:• It eliminates the need for a discrete Secure Element by implementing secure payment functions inside the RA6M4. This reduces bill-of-materials cost and saves space on the board. It also strengthens security, because the vulnerable communications path between a discrete Secure Element and host MCU is also eliminated.• The RA6M4 is a lower-cost component than a dedicated SoC, and is widely available with no security of supply concerns. The mPoS solution implements a comprehensive set of payment terminal functions, including EMVCo Level 1 and Level 2 ready software. This means that it provides an effective platform for terminal manufacturers to verify the concept’s compliance with the EMVCo standard, and to complete rapid design integration based on the hardware and software components supplied by Renesas and Panthronics.The design includes a space-saving antenna which surrounds the display screen, a configuration which is only possibly because of the robust connectivity performance of the PTX100R card reader. The PXT100R’s unique sine wave architecture results in industry-best sensitivity and transmission strength, boosting the terminal’s signal-to-noise ratio and allowing for reliable coupling with payment cards or mobile phones in all usage conditions, and via an antenna placed close to an electrically noisy display.