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Short Desc. : D16550: Configurable UART with FIFO
Overview :
The D16550 is a soft Core of a Universal Asynchronous Receiver/Transmitter (UART) functionally identical to the TL16C550A. The D16550 allows serial transmission in two modes: UART mode and FIFO mode. In FIFO mode internal FIFOs are activated allowing 16 bytes (plus 3 bits of error data per byte in the RCVR FIFO) to be stored in both receive and transmit directions.
Features : - Software compatible with 16450 and 16550 UARTs
- Configuration capability
- Separate configurable BAUD clock line
- Two modes of operation: UART mode and FIFO mode
- Majority Voting Logic
- In the FIFO mode transmitter and receiver are each buffered with 16 byte FIFO to reduce the number of interrupts presented to the CPU
- Adds or deletes standard asynchronous communication bits (start, stop, and parity) to or from the serial data
- In UART mode receiver and transmitter are double buffered to eliminate a need for precise synchronization between the CPU and serial data
- Independently controlled transmit, receive, line status, and data set interrupts
- False start bit detection
- 16 bit programmable baud generator
- MODEM control functions (CTS, RTS, DSR, DTR, RI, and DCD)
Categories :
Portability :
Type : Soft
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