200 SerDes
200 : SerDes
- Author: Mahaa Santeep G
- Description: The project implements a Serializer and Deserializer (SerDes) module for converting data between parallel and serial formats in digital systems.
- GitHub repository
- Clock: 100 Hz
How it works
The SerDes project operates by efficiently converting data between parallel and serial formats, enabling seamless communication between systems with different data transfer requirements. Here's how it works:
-
Serialization Path:
- Parallel data is received through the
data_8b_ininput. - Upon the rising edge of the clock (
clk) and when the data enable signal (data_en) is active, the input data is latched to ensure synchronization. - The latched parallel data undergoes encoding into a 10-bit format using an 8b/10b encoding scheme. This encoding scheme provides sufficient data integrity and clock recovery capabilities for serial transmission.
- The encoded data is further latched and transmitted serially through the
ser_outoutput when the serializer enable signal (ser_en) is asserted.
- Parallel data is received through the
-
Deserialization Path:
- Serial data is received through the
ser_ininput. - The serial data is shifted in parallel using a Serial-In-Parallel-Out (SIPO) shift register when the parallel enable signal (
par_en) is active. - The parallel data is latched upon the rising edge of the clock (
clk) and when the data enable signal (data_en) is active to ensure synchronization. - The latched parallel data undergoes decoding from the 10-bit format back to an 8-bit format, effectively reversing the serialization process.
- The decoded parallel data is output through the
data_outoutput.
- Serial data is received through the
-
Synchronization and Reset:
- Synchronous reset (
rst) ensures proper initialization of internal state variables and output data. - Latch modules are employed throughout the process to synchronize data with the clock and ensure stable output.
- Synchronous reset (
-
Integration and Flexibility:
- The project provides a modular and flexible design, facilitating easy integration into larger systems.
- Users can adjust control signals (
data_en,ser_en,par_en) to tailor the operation to specific requirements. - Proper clock domain crossing techniques are employed to ensure reliable data transfer between parallel and serial domains.
Overall, the SerDes project offers an efficient and reliable solution for bidirectional data conversion, enabling seamless communication between systems with disparate data transfer interfaces.
How to test
The provided RTL project implements a Serializer and Deserializer (SerDes) module capable of converting data between parallel and serial formats. The module, encapsulated within serdes_top, features inputs for clock signal (clk), active high reset (rst), data enable signal (data_en), and control signals for serialization (ser_en) and deserialization (par_en). Parallel data is input through data_8b_in, undergoing latching, encoding into 10-bit data, and serial output (ser_out) generation during serialization, while serial input (ser_in) undergoes deserialization, parallelization, and output (data_out) generation. Synchronous reset ensures proper initialization, and latch modules synchronize data. The project facilitates seamless integration into larger systems, offering flexibility and reliability for applications requiring efficient data transmission across parallel and serial interfaces.
External hardware
There are No External Hardware Used in the Project
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | data_8b_in[0] | data_out[0] | ser_in |
| 1 | data_8b_in[1] | data_out[1] | ser_out |
| 2 | data_8b_in[2] | data_out[2] | data_en |
| 3 | data_8b_in[3] | data_out[3] | par_en |
| 4 | data_8b_in[4] | data_out[4] | ser_en |
| 5 | data_8b_in[5] | data_out[5] | |
| 6 | data_8b_in[6] | data_out[6] | |
| 7 | data_8b_in[7] | data_out[7] |