The TL16C752BPTR is a dual Universal Asynchronous Receiver/Transmitter (UART) with 64-byte FIFOs, automatic hardware/software flow control and data rates up to 3Mbps. It offers enhanced features. It has a transmission control register (TCR) that stores receiver FIFO threshold levels 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 over 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.
Pin-compatible with ST16C2550 with additional enhancements
Up to 1.5Mbps baud rate when using crystal
Up to 3Mbps baud rate when using oscillator or clock source 64-byte transmit FIFO
64-byte Transmit FIFO
64-byte Receive FIFO with error flags
Programmable and selectable transmit and receive FIFO trigger
Levels for DMA and interrupt generation
Programmable receive FIFO trigger levels for software/hardware flow control
DMA signalling capability for both received and transmitted data
Software selectable baud rate generator
Prescaler provides additional divide-by-4 function
Fast access time 2 clock cycle IOR/IOW pulse width
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 DCD\)
(EN)
