Interfacing Microchip SPI Serial EEPROMS to NXP P89LPC9XX Microcontrollers Using Hardware Peripheral
The 25XXX series serial EEPROMs from Microchip Technology are SPI compatible and have maximum clock frequencies ranging from 3 MHz to 20 MHz. Many times when designing an application which utilizes a serial EEPROM device, it may be beneficial to use a microcontroller which features a hardware peripheral. This often offers a faster serial bus and a quicker time to market, in addition to reduction in code size. This application note provides assistance and source code to ease the design process of interfacing an NXP P89LPC952 microcontroller to a Microchip SPI serial EEPROM, using the hardware serial port.
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