● Member of IMPACT family: 3.3 V to 5.0 V, -40 Cel to +85 Cel and 68xxx or 80xxx bus interface for all devices
● Dual full-duplex independent asynchronous receiver/transmitters
● 16 character FIFOs for each receiver and transmitter
● Pin programming selects 68xxx or 80xxx bus interface
● Programmable data format
● 5 data to 8 data bits plus parity
● Odd, even, no parity or force parity
● 1 stop, 1.5 stop or 2 stop bits programmable in 1/16-bit increments
● 16-bit programmable counter/timer
● Programmable baud rate for each receiver and transmitter selectable from:
● 28 fixed rates: 50 kBd to 230.4 kBd
● Other baud rates to 1 MHz at 16x
● Programmable user-defined rates derived from a programmable counter/timer
● External 1x or 16x clock
● Parity, framing, and overrun error detection
● False start bit detection
● Line break detection and generation
● Programmable channel mode
● Normal (full-duplex)
● Automatic echo
● Local loopback
● Remote loopback
● Multi-drop mode (also called wake-up or 9-bit)
● Multi-function 7-bit input port (includes IACKN)
● Can serve as clock or control inputs
● Change of state detection on four inputs
● Inputs have typically > 100 kΩ pull-up resistors
● Change of state detectors for modem control
● Multi-function 8-bit output port
● Individual bit set/reset capability
● Outputs can be programmed to be status/interrupt signals
● FIFO status for DMA interface
● Versatile interrupt system
● Single interrupt output with eight maskable interrupting conditions
● Output port can be configured to provide a total of up to six separate interrupt outputs that may be wire ORed
● Each FIFO can be programmed for four different interrupt levels
● Watchdog timer for each receiver
● Maximum data transfer rates: 1x - 1 Mbit/s, 16x - 1 Mbit/s
● Automatic wake-up mode for multi-drop applications
● Start-end break interrupt/status
● Detects break which originates in the middle of a character
● On-chip crystal oscillator
● Power-down mode
● Receiver time-out mode
● Single 3.3 V or 5 V power supply
● Powers up to emulate SC26C92