Enhanced Octal Universal Asynchronous Receiver/Transmitter (Octal UART)

  • Archived
  • This page contains information on a product that is no longer manufactured (discontinued). Specifications and information herein are available for historical reference only.

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Block Diagram

SCC2698BC1A84, SCC2698BE1A84

SCC2698BC1A84, SCC2698BE1A84 Block Diagram


Key Features

  • Eight full-duplex independent asynchronous receiver/transmitters
  • Quadruple buffered receiver data register
  • Parity, framing and overrun error detection
  • False start bit detection
  • Line break detection and generation
  • Four multi-function programmable 16-bit counter/timers
  • Four interrupt outputs with eight maskable interrupting conditions for each output
  • Receiver ready/FIFO full and transmitter ready status available on 16 multi-function pins in PLCC package
  • On-chip crystal oscillator
  • TTL compatible
  • Single +5 V power supply with low power mode
  • Eight multi-purpose output pins
  • Sixteen multi-purpose I/O pins
  • Sixteen multi-purpose Input pins with pull-up resistors

Programmable Data Format

  • 5 to 8 data bits plus parity
  • Odd, even, no parity or force parity
  • 1, 1.5 or 2 stop bits programmable in 1/16-bit increments

Baud Rate for The Receiver and Transmitter Selectable

  • 26 fixed rates: 50 to 38.4 K baud
  • Non-standard rates to 115.2 K baud
  • User-defined rates from the programmable counter/timer associated with each of four blocks
  • External 1x or 16x clock

Programmable Channel Mode

  • Normal (full-duplex), automatic echo, local loop back, remote loopback


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