AT17C128-10SI

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AT17C128-10SI, which stands for Advanced Tone AVR Family Configuration Serial EEPROM, is a memory device used in Field Programmable Gate Arrays (FPGAs). This device is typically used to configure the FPGA and provide it with data and instructions that the device needs in order to perform its meant operation. It operates on a twist between serial and parallel protocols, allowing it to store multiple bits of data while retaining a cheap and easy-to-implement format.

The AT17C128-10SI is made up of a 128K-bit serial EEPROM that is divided into 4096 sequences of 16 bits each. The EEPROM contains an internal shift-register, a clock controller and a 13-bit address selection logic. This logic is designed to permit access to the desired data. The internal shift register holds the incoming data, which is written to memory when the write pin is activated and pulsed. The shift register is used as a FIFO buffer, which is equivalent to a 64-byte FIFO buffer.

When the device is presented with a clock via the data strobe pin, it will read the data from the shift register and store the data in memory at the designated address. This data can then be read from the device when the read pin is activated. The clock can also be used to perform a write cycle, moving data from the memory to the shift register for use. The AT17C128-10SI will support both a single-byte write cycle, as well as a \'burst write\' cycle, where multiple bytes of data can be written sequentially to the device.

The device is able to configure an FPGA in a number of different ways. The most commonly used is the \'Master Mode\' which uses the shift register and a data strobe pin to write data to the EEPROM. This is done in a batch fashion on the FPGA, allowing forces all the data stored in the device to be written to the FPGA simultaneously. This mode is particularly useful when working with large volumes of data and is the most commonly used method when configuring an FPGA.

Another mode of operation, known as \'Slave Mode\', affords the user with more fine-grained control over configuring their FPGA. The data stored in the EEPROM is read by the FPGA in a sequential fashion. This form of addressable memory allows for multiple types of sequential operations to be performed on the device, or for the configuration of individual sections of the FPGA.

The AT17C128-10SI is a versatile and robust memory device used to configure Field Programmable Gate Arrays. It supports both master and slave modes of operation, allowing the user to choose how best to configure their FPGA. It does this using a twist between serial and parallel protocols, allowing it to move multiple bits of data as needed while in traditional, cheap and easy-to-implement formats.

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