Serial PCI Board, 2-Port, Surge


More From: Quatech
Item #: 7550355
Mfr. Part#: DSC-100IND
Availability: On Order
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Serial PCI Board, 2-Port, Surge - DSC-100IND

    The Quatech, Inc. DSC-100 provides two RS-232 asynchronous serial communication interfaces for IBM-compatible personal computer systems using the PCI expansion bus. The DSC-100 uses Quatech's new Enhanced Serial Adapter design. Legacy serial port data rates are limited to a maximum of 115,200 bits per second. Quatech Enhanced Serial Adapters can achieve data rates as high as 921,600 bits per second. As a PCI device, the DSC-100 requires no hardware configuration. The card is automatically configured by the computer's BIOS or operating system. The two serial ports share a single interrupt line and are addressed in a contiguous block of 32 bytes. A special interrupt status register is provided to help software to manage the shared interrupt.

    The DSC-100's serial ports use 16750 Universal Asynchronous Receiver/Transmitters (UARTs). These UARTs contain hardware buffers (FIFOs) which reduce processing overhead and allow higher data rates to be achieved. The 16750 contains a 64-byte FIFO and can transmit and receive data at a rate of up to 921,600 bits per second. The 16750 is recommended for heavy multitasking environments and for applications involving high data rates.     

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