Processor CI Controller is a hardware module that acts as a wrapper around the processor core, enabling control over it, monitoring the memory bus, and managing signals such as clock, reset, and halt.
The controller is divided into various modules, each responsible for performing a specific function. Among the existing modules, the main ones are:
The interpreter is responsible for receiving instructions sent by the test software and issuing commands to other modules. These commands can involve tasks such as reading and writing to memory, providing N clock cycles to the processor, etc.
The communication module acts as the bridge between the host machine running the test software and the controller. It is responsible for implementing the protocol to be used, which could be UART, SPI, or PCIe.
The clock controller manages the clock signal provided to the processor. It has the capability to supply a specific number of pulses and/or divide the clock frequency.
The memory controller provides an access interface to the memory for both the controller and the processor, managing the priority with which each can interact with the memory.
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