The TL16C754BPN is a quad Universal Asynchronous Receiver/Transmitter (UART) with 64-byte FIFOs, automatic hardware/software flow control and data rates up to 3Mbps. The TL16C754B offers enhanced features. It has a transmission control register (TCR) that stores received FIFO threshold level to start/stop transmission during hardware and software flow control. With the FIFO RDY register, the software gets the status of TXRDY/RXRDY for all four ports in one access. On-chip status registers provide the user with error indications, operational status and modem interface control. System interrupts may be tailored to meet user requirements. An internal loopback capability allows onboard diagnostics. The UART transmits data sent to it from the peripheral 8-bit bus on the TX signal and receives characters on the RX signal. The UART has a 64-byte receive FIFO and transmit FIFO and can be programmed to interrupt at different trigger levels.
64-byte Transmit FIFO
64-byte Receive FIFO with error flags
Programmable receive FIFO trigger levels for software/hardware flow control
Software/hardware flow control
Programmable Xon/Xoff characters
Programmable Auto-RTS\ and Auto-CTS\
DMA signalling capability for both received and transmitted data
Software selectable baud rate generator
Prescaler provides additional divide-by-4 function
Programmable sleep mode
Even, odd or no-parity bit generation and detection
False start bit detection
Complete status reporting capabilities in both normal and Sleep mode
Line break detection and generation
Internal test and loopback capabilities
Fully prioritized interrupt system controls
Modem control functions (CTS\, RTS\, DSR\, DTR\, RI\ and CD\)
(EN)
