Design with the TPS-1

Hello, We are considering making a design with the TPS-1, and we wonder if it is possible to run this processor as a (Ethernet) switching node without a host MCU? Also, we would like to run a few external components (an ADC via SPI-bus, a couple of RS422 communication lanes). Is this possible, or do we need a another MCU to run these (~5) external components and collect data from them? /Henrik