Connecting Slave Devices to a 32-bit Processor

Physical memory is connected to the processor's External Memory interface. Peripheral devices are connected to the processor's Peripheral I/O interface. The following linked pages explore the methods of connection, from a single slave device, through to a range of memory and peripheral devices – accessed by single or multiple processors.

Note: The following information is based on using an OpenBus System to 'capture' the main processor system of your FPGA design. The principles of connection also apply for schematic-based FPGA design.

Connecting Single Slave Devices

Connecting Multiple Memory Devices

Connecting Multiple Peripheral IO Devices

Sharing a Single Slave Device Between Processors

Sharing Multiple Slave Devices Between Processors

Catering for Memory-Based Peripherals

A Word on Connecting External Memory...