# pulp-io

**Repository Path**: lowRISC/pulp-io

## Basic Information

- **Project Name**: pulp-io
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: main
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2024-11-22
- **Last Updated**: 2024-11-22

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

This module is meant to contain all the pulp IP that communicates with the external world and need to be connected to IO pads.

It contains the old udma_subsystem IP and the new pulp_gpio IP.

There is a pre-defined set of peripheral that can be instantiated in a parametric fashion. The udma_subsystem configuration can be changed by modifying the `udma_cfg_pkg.sv` package to instantiated the desired peripherals.

Note: hyperBus is a timing critical peripheral that often need to take into account IO pad delays during STA. For this purpose, this peripheral can be either instantiated as udma_subsystem peripheral, or implemented as a hard macro and simply connected to the io subsystem. In this case, by specifying the `-t hyper_external` bender target, the udma_subsystem will instantiate a hyper_macro_bridge that exposes the dedicated internal hyperBus udma channel as a module port. The channel connections can then be propagated to where the hard macro is physically instantiated in the design.