參數(shù)資料
型號: 22505
英文描述: AMD Test Interface Port Board User's Manual? 2.62MB (PDF)
中文描述: AMD測試接口端口板用戶手冊? 2.62MB(PDF格式)
文件頁數(shù): 29/78頁
文件大小: 2691K
代理商: 22505
Test Interface Port Board User’s Manual
2-5
Serial Ports
NOTE:
For more information about initializing or programming the serial ports,
refer to the Texas Instruments TL16C552 data sheet.
The TIP board provides two 16550 RS-232 serial ports (9-pin, DCE). The TIP
board contains a Texas Instruments TL16C552 chip that controls two 16550
Universal Asynchronous Receiver Transmitters (UARTs) and a parallel port. For
more information about the parallel port, refer to page 2-10. These serial ports run
up to 115200 baud and can be used with or without interrupts. The interrupt line
from each serial port connects to a dedicated pin on the interface connector or
through a shared interrupt circuit, which has one dedicated pin on the interface
connector. Figure 2-3 illustrates the serial-port connector pinout.
Serial port 0 typically serves as a system debugging console. The TIP board
typically sends debugging messages, such as asserts, fault messages, and trace
statements, to this port. This interface can also support a command line or other
method of accepting user input. For information about the I/O address locations,
refer to Table 2-1 and Table 2-2.
Serial port 1 is typically dedicated for use by a software debugger. For example,
the CAD-UL debugger can communicate with the board-level monitor using this
port.
Figure 2-3. Serial-Port Connector Pinout
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