Catalog
16C550 Dual UART Bridge Controller
Key Features
• 1.62V to 3.6V with 5V Tolerant Serial Inputs
• Programmable Sleep Mode with automatic wake-up- Intel or Motorola Data Bus Interface select
• Each UART is independently controlled with:- 16C550 Compatible Register Set- 64-byte Transmit and Receive FIFOs- Transmit and Receive FIFO Level Counters- Programmable TX and RX FIFO Trigger Levels for DMA and Interrupt Generation→ Programmable Receive FIFO Trigger Levels for Software/Hardware Flow Control→ Programmable hysteresis(Table A-D) for Software/
• Hardware Flow Control- Automatic RTS/CTS Flow Control- Automatic Xon/Xoff Software Flow Control with
• Optional Data Flow Resume by Xon Any Character→ DMA Signaling Capability for both Received and Transmitted Data- RS485 HDX Control Output- RS485 auto address detection- Infrared (IrDA 1.0/1.1) Data Encoder/Decoder- Programmable Data Rate with Prescaler
• Up to 16 Mbps Serial Data Rate with 64MHz external clock input
• Crystal oscillator(up to 24MHz) or external clock(up to 80MHz) input
• Built in Power-On-Reset Circuit
Description
AI
The PI7C9X752 (752), is a 1.62V to 3.6V dual Universal Asynchronous Receiver and Transmitter (UART) with 5V tolerant serial(modem) inputs. The highly integrated device is designed for high bandwidth requirement in communication systems.Each UART has its own 16C550 compatible set of configuration registers, TX and RX FIFOs of 64 bytes, fully programmable transmitand receive FIFO trigger levels, TX and RX FIFO level counters, automatic RTS/CTS hardware flow control with programmablehysteresis, automatic software (Xon/Xoff) flow control, RS-485 half-duplex direction control, Intel or Motorola bus interface andsleep mode for power saving.