1. A method, comprising: maintaining neuron information for multiple neurons of a neural network; maintaining incoming firing events for different periods of delay in a set of bit maps, wherein each bit map of the set of bit maps corresponds to a period of delay of the different periods of delay, and the bit map indicates which incoming axon of multiple incoming axons of the neural network receives an incoming firing event in a future time step that occurs after the corresponding period of delay has elapsed; and based on the neuron information and the set of bit maps, integrating incoming firing events in a time-division multiplexing manner using multiple processors of the neural network; wherein the total number of neurons in the neural network is based on the number of processors in the neural network and the number of times each processor is time-multiplexed.