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- NATIONAL SEMICONDUCTOR'S PC PERIPHERALS APPLICATION GROUP
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- USER INFORMATION
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- PC16C550/NS16550AF
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- 8/9/90
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- When the transmitter FIFO is enabled, the last byte in
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- the shift register is being sent out, and only 1 new byte
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- is being loaded into this FIFO; there is a small
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- posssibility that the new byte will not be transmitted.
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- When more than 1 new byte is loaded into the FIFO all of
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- the new bytes loaded will be transferred.
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- This issue is caused by the timing relationship between
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- the baudrate and the system software. If this problem
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- occurs it can be eliminated by changing the execution
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- time of the driver software.