The scaler only mode has specific registers that allow you to dynamically control the operation of the core. Table: Vertical Scaler Registers provides a detailed description of all the registers that apply globally to the IP.
The scaler only configuration consists of the following register configurable IPs:
1. Vertical scaler
2. Horizontal scaler
The AXI interconnect bundles the AXI4-Lite interfaces of the scalers and GPIO into in AXI4-Lite interface at the subsystem boundary. The GPIO block allows for providing a soft reset function for the scaler subsystem.