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Beyond UART 16550 Serial Controller


Beyond UART (Universal Asyncchronous Receiver/Transmitter) 16550 Serial Controller IP core translates data between parallel and serial interfaces, and adds/removes start,stop bits, and optionally parity bit. It can be used to communicate with other external devices using a serial cable and RS232 protocol. This core is fully compatible with industry standard National Semiconductors 16550D device except for scratch regiser which is not implemented. Additionaly CPU can read values of divisor latch and fill levels of transmitter and receiver FIFOs. On power up/reset Beyond UART starts in 16450 mode.
 
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Compliance
  • Compatible with PC16550D / 16450
 
 
Functions
  • FIFO depth of 16 bytes in 16650 mode
  • Modem control functions
 
 
Programmable Serial Interface
  • Number of data bits (5 - 8)
  • Number of stop bits
    • 1 and 1, 5 for (5 data bits)
    • 1 and 2 (6, 7, 8 data bits)
  • False start bit detection
  • Internal diagnostic (loopback, error simulation)
  • Line break generation and detection
  • Prioritized interrupts
  • Readable Divisor latch value
  • Readable transmitter and receiver FIFO fill levels
 
 
Supported SoC Bus Interfaces
  • AMBA AXI / AHB / APB as appropriate
  • AMBA AXI
  • WISHBONE
  • Other buses: for additional options please contact us for further information

 
 
 


Beyond UART 16550 Serial Controller


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