双UART，具有64字节FIFO DUAL UART WITH 64-BYTE FIFO
DESCRIPON
The TL16C752C is a quad universal asynchronous receiver/transmitter UART with 64-byte FIFOs, automatic hardware/software flow control, and data rates up to 3 Mbps. It incorporates the functionality of four UARTs, each UART having its own register set and FIFOs. The four UARTs share only the data bus interface and clock source, otherwise they operate independently.
FEATURES
• ST16C654/654D Pin Compatible With Additional Enhancements PFB Package Only
• Supports up to 24-MHz Crystal Input Clock 1.5 Mbps
• Supports up to 48-MHz Oscillator Input Clock 3 Mbps for 5-V Operation
• Supports up to 32-MHz Oscillator Input Clock 2 Mbps for 3.3-V Operation
• Supports up to 24-MHz Input Clock 1.5 Mbps for 2.5-V Operation
• Supports up to 16-MHz Input Clock 1 Mbps for 1.8-V Operation
• 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
• Software/Hardware Flow Control
– Programmable Xon/Xoff Characters
– Programmable Auto-RTS and Auto-CTS
• Optional Data Flow Resume by Xon Any Character
• DMA Signaling Capability for Both Received and Transmitted Data on PN Package
• RS-485 Mode Support
• Support 1.8-V, 2.5-V, 3.3-V, or 5-V Supply
• Characterized for Operation From –40°C to 85°C, Available in Commercial and Industrial Temperature Grades
• Software-Selectable Baud-Rate Generator
• Prescalable Provides Additional Divide-by-4 Function
• Programmable Sleep Mode
• Programmable Serial Interface Characteristics
– 5-, 6-, 7-, or 8-Bit Characters
– Even, Odd, or No Parity Bit Generation and Detection
– 1-, 1.5-, or 2-Stop Bit Generation
• False Start Bit Detection
• Complete Status Reporting Capabilities in Both Normal and Sleep Mode
• Line Break Generation and Detection
• Internal Test and Loopback Capabilities
• Fully Prioritized Interrupt System Controls
• Modem Control Functions CTS, RTS, DSR, DTR, RI, and CD
• IrDA Capability