4
USB Serial Adapter
1. Features :
• Fully Compliant with USB Specification v1.1
• Supports RS-232 Serial Interface –
• Full-duplex transmitter and receiver (TXD and RXD)
• Six MODEM control pins (RTS, TS, DTR,
DSR, DCD, and RI) 5, 6, 7 or 8 data bits
• Odd, Even, Mark, Space, or None parity mode
• One, one and a half, or two stop bits
• Parity error, frame error, and serial break detection
• Programmable baud rate from 75 bps to 6 Mbps
• External RS-232 driver power down control
• Independent power source for serial interface
• Extensive Flow Control Mechanism
• Adjustable high/low watermark level
• Automatic flow control with CTS/RTS
• Automatic software flow control with XON/XOFF
• Inbound data buffer overflow detection
• Configurable 512-byte bi-directional data buffer:
• 256-byte outbound buffer and 256-byte inbound buffer; or
• 28-byte outbound buffer and 384-byte inbound buffer.