D16750 - Configurable UART with FIFO and hardware flow control
Block Diagram
Overview
The D16750 is a soft Core of a Universal Asynchronous Receiver / Transmitter (UART), functionally identical to the TL16C750. The D16750 allows serial transmission in two modes - UART and FIFO. In the FIFO mode, internal FIFOs are activated allowing up to 512 bytes (plus 3 bits data error per byte in the RCVR FIFO) to be stored, both in receive and transmit directions. Our trustworthy core performs serial-to-parallel conversion on data characters, received from a peripheral device or from a MODEM, and a parallel-to-serial conversion on data characters, received from the CPU. The CPU can read acomplete status of the UART at any time, during the functional operation. The reported status information includes the type and condition of the transfer operations performed by the UART, as well as any error conditions (parity, overrun, framing or break interrupt).
Features
- Software compatible with 16450, 16550, and 16750 UARTs; Configuration capability; Separate configurable BAUD clock line
- Majority Voting Logic; Supports RS232 and RS485 standards; Two modes of operation: UART mode and FIFO mode
- Configurable FIFO size allowing up to 512 levels deep FIFOs in both Rx and Tx directions
- Adds or deletes standard asynchronous communication bits (start, stop and parity) to or from the serial data
- Independently controlled transmit, receive, line status and data set interrupts; False start bit detection
IP Quality Metrics
| Basic | |
|---|---|
| Year IP was first released | 2003 |
| Latest version of Quartus supported | 15.1 |
| Altera Customer Use | |
| IP has been successfully implemented in production with at least one customer | Y |
| Deliverables | |
Customer deliverables include the following:
|
Y |
| Parameterization GUI allowing end user to configure IP | Y |
| IP core is enabled for OpenCore Plus Support | Y |
| Source language | Verilog; VHDL |
| Testbench language | Verilog; VHDL |
| Software drivers provided | Y |
| Driver OS support | TBD |
| Implementation | |
| User Interface | AXI; Avalon-MM |
| IP-XACT Metadata included | N |
| Verification | |
| Simulators supported | ModelSim |
| Hardware validated | Y. Altera Board Name DE1, DE2 |
| Industry standard compliance testing performed | N |
| If No, is it planned? | Y |
| Interoperability | |
| IP has undergone interoperability testing | N |
| Interoperability reports available | Y |
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