Serial ee prom programming8/8/2023 When the mode-control pins are set properly (HWMODE = 0, MODEC1 = 1, and MODEC0 = 0), the DS33Z11/DS33Z44 acts as an SPI master and reads the data from the serial EEPROM. The SPI interface is a four-signal serial interface that allows configuration of the DS33Z11/DS33Z44 through an external serial EEPROM. This application note was created to help the system designer properly program an EEPROM for use with the DS33Z11 or DS33Z44. While the hardware pins offer only limited functionality, the EEPROM configuration allows the user to program each register in the device. However, for reduced-cost designs, the products can be configured using hardware pins or through an external EEPROM. The ELITE products can be configured in several ways, the most common of which is through microprocessor (µP) control. Analog Devices' Ethernet link transport engine (ELITE) product line was created to bridge WAN to LAN.
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