Texas Instruments

Programmable Auto-RTS\ and Auto-CTS\ In Auto-CTS\ Mode, CTS\ Controls Transmitter In Auto-RTS\ Mode, RCV FIFO Contents and Threshold Control RTS\ Serial and Modem Control Outputs Drive a RJ11 Cable Directly When Equipment Is on the Same Power Drop Capable of Running With All Existing TL16C450 Software After Reset, All Registers Are Identical to the TL16C450 Register Set Up to 16-MHz Clock Rate for up to 1-Mbaud Operation In the TL16C450 Mode, Hold and Shift Registers Eliminate the Need for Precise Synchronization Between the CPU and Serial Data Programmable Baud Rate Generator Allows Division of Any Input Reference Clock by 1 to (216 –1) and Generates an Internal 16× Clock Standard Asynchronous Communication Bits (Start, Stop, and Parity) Added to or Deleted From the Serial Data Stream 5-V and 3.3-V Operation Independent Receiver Clock Input Transmit, Receive, Line Status, and Data Set Interrupts Independently Controlled Fully Programmable Serial Interface Characteristics: 5-, 6-, 7-, or 8-Bit Characters Even-, Odd-, or No-Parity Bit Generation and Detection 1-, 1 1/2-, or 2-Stop Bit Generation Baud Generation (dc to 1 Mbit/s) False-Start Bit Detection Complete Status Reporting Capabilities 3-State Output TTL Drive Capabilities for Bidirectional Data Bus and Control Bus Line Break Generation and Detection Internal Diagnostic Capabilities: Loopback Controls for Communications Link Fault Isolation Break, Parity, Overrun, and Framing Error Simulation Fully Prioritized Interrupt System Controls Modem Control Functions (CTS\, RTS\, DSR\, DTR\, RI\, and DCD\)