# Ip Reference

> Browse the IP portfolio with reference implementations of common digital modules.

- **Type:** Skill
- **Install:** `agentstack add skill-ic-star-tech-ccfoundry-agent-kit-ip-reference`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [ic-star-tech](https://agentstack.voostack.com/s/ic-star-tech)
- **Installs:** 0
- **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [ic-star-tech](https://github.com/ic-star-tech)
- **Source:** https://github.com/ic-star-tech/ccfoundry-agent-kit/tree/main/examples/verilog_module_writer/agent_space/skills/ip_reference

## Install

```sh
agentstack add skill-ic-star-tech-ccfoundry-agent-kit-ip-reference
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# IP Reference Portfolio

## Trigger
Use this skill when implementing standard digital modules. Look up the
reference code from the `references/` subdirectory instead of writing from scratch.

## How to Use

1. Check the portfolio table below to find a matching module
2. Read the `.v` file from `references//` for the implementation
3. Read the `_tb.v` file for the testbench template
4. Adapt parameters as needed by the task spec
5. Compile and simulate in the Foundry sandbox

**File locations** (relative to this skill directory):
```
references/
├── rra/             # Round Robin Arbiter
│   ├── rra.v
│   └── rra_tb.v
├── sync_fifo/       # Synchronous FIFO
│   ├── sync_fifo.v
│   └── sync_fifo_tb.v
├── edge_detect/     # Edge Detector
│   ├── edge_detect.v
│   └── edge_detect_tb.v
├── priority_enc/    # Priority Encoder
│   ├── priority_enc.v
│   └── priority_enc_tb.v
├── pulse_sync/      # Pulse Synchronizer (CDC)
│   ├── pulse_sync.v
│   └── pulse_sync_tb.v
└── counter/         # Up/Down Counter
    ├── counter.v
    └── counter_tb.v
```

## IP Portfolio

| Module | Category | Params | Description | Verified |
|--------|----------|--------|-------------|----------|
| rra | Arbitration | N=4 | Mask-based Round Robin Arbiter, one-hot grant | ✅ iverilog |
| sync_fifo | Memory | DATA_W=8, DEPTH=4 | Synchronous FIFO with full/empty/count | ✅ iverilog |
| edge_detect | Utility | — | Rising/falling/both edge detector | ✅ iverilog |
| priority_enc | Logic | N=8 | Parameterized priority encoder with valid flag | ✅ iverilog |
| pulse_sync | CDC | — | Single-pulse clock domain crossing (3-stage sync) | ✅ iverilog |
| counter | Utility | WIDTH=8 | Up/down counter with load, overflow/underflow | ✅ iverilog |

## Design Conventions

All reference IPs follow the coding_style skill guidelines:
- Verilog-2001, ANSI port declarations
- Async active-low reset (`rst_n`)
- `always @(*)` for combinational, `always @(posedge clk or negedge rst_n)` for sequential
- Self-checking testbenches with PASS/FAIL and ALL_TESTS_PASSED summary
- `$dumpfile` / `$dumpvars` for waveform capture

## Sandbox Commands

```bash
# General pattern for any IP:
cd /workspace
iverilog -o _sim .v _tb.v
vvp _sim

# Example for RRA:
iverilog -o rra_sim rra.v rra_tb.v
vvp rra_sim
```

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [ic-star-tech](https://github.com/ic-star-tech)
- **Source:** [ic-star-tech/ccfoundry-agent-kit](https://github.com/ic-star-tech/ccfoundry-agent-kit)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-ic-star-tech-ccfoundry-agent-kit-ip-reference
- Seller: https://agentstack.voostack.com/s/ic-star-tech
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.