产品描述
The H16750S is a standard UART providing 100% software compatibility with the popular Texas Instruments 16750 device. It performs serial-to-parallel conversion on data originating from modems or other serial devices, and performs parallel-to-serial conversion on data from a CPU to these devices.
The H16750S can be run in either 16450-compatible character mode or FIFO mode, where an internal FIFO relieves the CPU of excessive software overhead..
主要特性与优势
- Adds or strips standard asynchronous communication bits (start, stop and parity) to or from the serial data.
- Capable of running all existing 16450 and 16550a software.
- Fully Synchronous design. All inputs and outputs are based on rising edge of clock.
- Fully programmable serial interface characteristics: 5, 6, 7, or 8 bit characters. Even, odd, or no-parity bit generation and detection. 1, 1½, or 2 stop bit generation. Baud generation.
- Programmable baud generator divides any input clock by 1 to (2**16 - 1) and generates the 16 x clock.
- Independently controlled transmit, receive, line status and data set interrupts.
- Modem control functions (CTSn, RTSn, DSRn, DTRn, RIn, and DCDn).
- Programmable Auto-CTSn and Auto-RTSn. In Auto-CTSn mode, CTSn controls the transmitter. In Auto-RTSn mode, the receiver FIFO contents and threshold control RTSn .
- In FIFO mode, transmitter and receiver are each buffered with up to 256 byte FIFO’s to reduce the number of interrupts presented to the CPU. Available with FIFO sizes of 8, 16, 32, 64, 128 or 256 bytes.
特色技术文档
