Renesas Electronics Corporation, a supplier of advanced semiconductor solutions, introduced the ultra-low power, 32-bit RX140 group of microcontrollers (MCUs) — the latest addition to its entry-level RX100 Series. Built around Renesas’ powerful RXv2 CPU core, the RX140 MCUs deliver excellent performance, with operation of up to 48 MHz with a CoreMark score of 204, which…
STMicroelectronics enhances its dual-interface NFC tags
STMicroelectronics has increased the I2C-interface performance in the latest generation of its ST25DV-I2C dynamic NFC-tag ICs, which let the host system access the tag’s on-chip EEPROM more quickly and easily. Writing to the EEPROM on the new ST25DV-I2C tags, via the I2C interface, is now as fast as standard EEPROM and allows flexible use of the…
Understanding the I2C Protocol
In embedded systems, a simple function rarely exists alone. A simple pushbutton and LEDs controller is useful but if that controller cannot report when a user has pressed a button or share the status its LED indicate, the controllers are not worth their value. Many embedded systems include peripheral devices connected to the microprocessor in…
AVR ATmega32 TWI Registers
AVR (ATmega32) contains some in-built registers for TWI communication which not only reduce the level of complexity but also make the whole communication process smooth. These registers have been explained in this tutorial. 1. TWBR (TWI Bit Rate Register) : TWBR7 TWBR6 TWBR5 TWBR4 TWBR3 TWBR2 TWBR1 TWBR0 This register is used in master…