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China's fourth manufacturer, GigaDevice, launched RISC-V architecture chip

Release on : Aug 26, 2019

On August 22, GigaDevice announced in Beijing that it is the first in the industry to introduce the open source instruction set architecture RISC-V into the field of general-purpose microcontrollers, and officially launched the world's first GD32V series 32-bit general-purpose MCU products based on RISC-V core. Provide complete toolchain support from chip to program code base, development kits, design solutions and continue to build RISC-V development ecosystem.

This 32-bit MCU with RISC-V architecture achieves 153 DMIPS performance at the highest frequency, and CoreMark scores 360 points for test software. Compared with the GD32 products built in the ARM Cortex-M3 architecture. 15%, dynamic power consumption reduced by 50%, standby power consumption also reduced by 25%.

This 32-bit MCU built in RISC-V architecture achieves 153 DMIPS performance at the highest frequency, and the CoreMark score of the test software reaches 360 points. Compared with the GD32 products built in the ARM Cortex-M3 architecture, efficacy increased by 15%, dynamic power consumption reduced by 50%, and standby power consumption reduced by 25%.

Its main configuration is as follows:

• RISC-V-based Bumblebee core (designed in collaboration with NUCLEI);

• Main frequency 108MHz, 16K-128K Flash memory, 8K-32K SRAM buffer;

• 2.6-3.6V power supply, I / O port can withstand 5V level;

• Equipped with a 16-bit advanced timer supporting three-phase PWM complementary output and Hall acquisition interface for vector control; four 16-bit general-purpose timers; two 16-bit basic timers; and two multi-channel DMA controllers; The Interrupt Controller (ECLIC) provides 68 external interrupts and can be nested with 16 programmable priorities;

• Integrated 12-bit high-speed ADC with 2.6M SPS sampling rate, 16 reusable channels, 16-bit hardware oversampling filtering and resolution configurable functions; 2 12-bit DACs;

• Peripheral connections include USAR *3, UART *2, SPI *3 (supports four-wire system, adds multiple transmission modes, expands Quad SPI NOR Flash for high-speed access), I2C *2 (supports Fast Plus (Fm+) Mode, frequency up to 1MHz (1MB/s)), I2S *2, CAN2.0B *2, USB 2.0 FS OTG *1 (supports multiple modes such as Device, HOST, OTG, etc.), EXMC (External Bus Expansion Controller, available Connect to external memory such as NOR Flash, SRAM);

• -40°C~85°C industrial grade operating temperature;

• Unique ID per chip, gFlash patented technology, to achieve on-chip storage encryption technology;

• Corresponding Arm product model (GD32V for GD32), package compatible with pin compatible, software development.

GigaDevice said that the MCU will be used in industrial control, consumer electronics, Internet of Things (IoT), edge computing and artificial intelligence, and become a new weapon for GigaDevice to enter the market.