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The IP provides two kinds of simplified interface connected to EMIF bus and AHB bus for communication with 8051 core and ARM core.The two kinds of interface are full-duplex serial communication interface.


  • Support programmable baud rate
  • Synchronous mode, fixed baud rate
  • 5-bit, 6-bit, 7-bit, 8-bit data width, variable baud rate in mode 1
  • 9-bit UART mode, fixed baud rate
  • 9-bit UART mode, variable baud rate
  • 512-byte fifo for transmit & receive data path respectively, which can be configured by users
  • Support batch data read and receive overtime control(only for interrupt function) in mode 1
  • Support baud rate up to 115200bps
  • Support AHB interface and EMIF interface
  • Programmable BASE_ADDR for internal registers, EMIF interface ,AHB interface
  • address must be 0x20 aligned
  • address must be 0x80 aligned

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