XR16L788IQ-F产品概述
The XR16L7881 (788), is a 2.97V to 5.5V with 5 V tolerant inputs octal Universal Asynchronous Receiver and Transmitter (UART). The highly integrated device is designed for high bandwidth requirement in communication systems. The global interrupt source register provides a complete interrupt status indication for all 8 channels to speed up interrupt parsing. Each UART has its own 16C550 compatible set of configuration registers, TX and RX FIFOs of 64 bytes, fully programmable transmit and receive FIFO trigger levels, TX and RX FIFO level counters, automatic RTS/CTS or DTR/DSR hardware flow control with programmable hysteresis, automatic software (Xon/Xoff) flow control, RS-485 half-duplex direction control with programmable turn-around delay, Intel or Motorola bus interface and sleep mode with a wake-up indicator.
Features:
2.97V to 5.5V with 5 V Tolerant Inputs Operation
Single Interrupt Output for all 8 UARTs
Global Interrupt Source for all 8 UARTs
5G “Flat” UART Registers for Configurations
Simultaneous UART Channels Initialization
Auto RS485 Half-duplex Control with Programmable Turn-around Delay
A General Purpose 16-bit Timer/Counter
Sleep Mode with Wake-up Indication
Highly Integrated Device for Space Saving
First eight registers are 16C550 compatible
64-byte Transmit and Receive FIFOs
Transmit and Receive FIFO Level Counters
Programmable TX and RX FIFO Trigger Levels
Automatic RTS/CTS or DTR/DSR Flow Control
Selectable Hardware Flow Control Hysteresis
Automatic Xon/Xoff Software Flow Control with Status Indicator
Infrared (IrDA 1.0) Data Encoder/Decoder
Programmable Data Rate with Prescaler
Up to 6.25 Mbps Serial Data Rate at 5 V
100-pin QFP Package (14x20x3 mm)
