TL16C550D, TL16C550DI
www. ti. com . SLLS597E – APRIL 2004 – REVISED DECEMBER 2008
ASYNCHRONOUS COMMUNICATIONS ELEMENT WITH AUTOFLOW CONTROL
FEATURES
1
• 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 24-MHz Clock Rate for up to 1. 5-Mbaud Operation With VCC = 5 V
• Up to 20-MHz Clock Rate for up to 1. 25-Mbaud Operation With VCC = 3. 3 V
• Up to 48-MHz Clock Rate for up to 3-Mbaud Operation with VCC = 3. 3 V (ZQS Package Only, Divisor = 1)
• Up to 40-MHz Clock Rate for up to 2. 5-Mbaud Operation with VCC = 3. 3 V (ZQS Package Only, Divisor ≥ 2)
• Up to 16-MHz Clock Rate for up to 1-Mbaud Operation With VCC = 2. 5 V
• 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, 3. 3-V, and 2. 5-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 ＝-, 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...
TA550D PDF File
