TL16C752BPTR

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\)

Applications

Communications et Réseaux