CAST, Inc. 
Short Desc. : H16750S -- Synchronous 16750 UART with FIFO & IrDA Core
Overview :
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. An IrDA-compliant serial data port may be used for infrared communication.

Developed for easy reuse in ASIC and FPGA applications, the H16750S is available optimized for several device families with competitive utilization and performance characteristics.
Features : - Capable of running all existing 16450 and 16550a software
- Fully Synchronous design. All inputs and outputs are based on the rising edge of clock
- 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
- Adds or strips standard asynchronous communication bits (start, stop and parity) to or from the serial data
- Independently controlled transmit, receive, line status and data set interrupts
- Programmable baud generator divides any input clock by 1 to (216 - 1) and generates the 16 x clock
- Modem control functions (CTSn, RTSn, DSRn, DTRn, 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
- 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
- False start-bit detection
- Complete status register
- Internal diagnostic capabilities: loop-back controls for communications link fault isolation
- Full prioritized interrupt system controls
Categories :
Portability :
Type : Soft

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