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OX16C95X 데이터시트 PDF




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부품번호 OX16C95X 기능
기능 HIGH-PERFORMANCE UART FAMILY REFERENCE DRIVERS
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OX16C95X 데이터시트, 핀배열, 회로
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OX16C95x
OX16PCI954
HIGH-PERFORMANCE UART FAMILY
REFERENCE DRIVERS
This document describes installation and use of the Oxford Semiconductor reference
drivers for the OX16C95x high performance UART family, including the OX16PCI954
Quad UART with PCI interface.
Version 2.0 (01 February 2000)




OX16C95X pdf, 반도체, 판매, 대치품
Custom solutions & drivers for the OX16PCI954
VERSION 1.0
Windows95 (original release1)
Note: the system prompts may vary between different versions of Windows. If in doubt consult the user manual.
1. The system will detect the device and ask which driver to install. Select “Driver from disk provided by hardware manufacturer”,
and click OK.
2. If you have the driver files on a floppy disk, insert it into the drive. Otherwise enter the full path to the driver files. Click OK.
3. The system installs the device, and then goes through the same steps for the local bus / parallel port. Note: the parallel port
drivers are located in the 9x_Parallel directory.
4. Once the main drivers are installed, the system installs the UART ports automatically. (Note: due to a Win95 bug you may have to
re-enter the path for it to find the files).
Windows2000
1. The system will detect the device and ask which driver to install. Click Next
2. Select “Search for a suitable driver for my device”, and click Next.
3. If you have the driver files on a floppy disk, insert it into the drive and check the “Floppy disk drives” box. Otherwise check the
4. If “Specify a location” was checked, you will have to enter the path to search and click OK.
5. The system will search for a driver. When it finds it, click Next. The files will be copied and the driver installed. Click Finish. The
system then installs the other logical function (parallel port / local bus) in the same manner.
6. Once the PCI devices are installed, the system will install the UART ports automatically.
Note 1: To check your version of Windows 95, right-click on “My Computer” and select “Properties”. The System Properties page will appear. If
the version is 4.00.950 B or C, you are using OSR2. If the letter is A or is absent, you are running the original releases.
Oxford Semiconductor Ltd.
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OX16C95X 전자부품, 판매, 대치품
Custom solutions & drivers for the OX16PCI954
VERSION 1.0
5 USING THE SERIAL DRIVER
The serial drivers for Windows 9x and Windows 2000 make use of a number of enhanced 95x UART features, and are highly configurable.
This section describes the configuration utilities, accessible through Device Manager, which can be used to enable and configure the
various features
The driver will install the correct number of serial ports and Windows will assign COM numbers to them (e.g. COM5). You can then attach
modems etc. to the ports and make use of them in the same fashion as any other generic port. The serial driver has extra configuration
options available over and above the standard ‘settings’ tab supplied with the generic 16550 driver. To adjust any of the UART parameters,
follow these steps:
1. Click on Start / Settings / Control Panel
2. Double click “System” to bring up the system properties dialog box
3. Select the “Device Manager” tab of this dialog (with the “View devices by type” option selected
4. Now click on the [+] next to the “Ports (COM & LPT)” icon to show the list of installed COM ports
5. Double click on an Oxford Semiconductor port to display the settings dialog for that port
The enhanced features are configurable through three dialog pages:
Settings
- Standard port settings found on normal COM port settings pages
Data Rate
- Advanced data rate selection options
FIFOs
- Device mode selection and FIFO trigger level settings
5.1.1 Windows 95/98 configuration
Settings
This page contains the standard Baud rate / Data bits / Parity / Stop bits and Flow control options found on most COM port settings pages.
These settings modify the default settings used by Windows. Most applications that use COM ports will override these settings with their
own comms parameters. Note that the baud rate selected by an application will be scaled up if a faster crystal is used
This page also provides configurable RS485 half-duplex operation. RS232 applications will not use this, and the DTR pin should be
configured as ‘normal’. However if RS485 line drivers are used, the driver can configure the DTR pin to enable the transmitter, in active-high
or active-low form.
Data Rate
This page provides a list of common crystal values used with COM ports. Select “Detect crystal frequency” to detect the input clock
frequency to the UART. (This requires that the port is not currently in use by another application).
[Note: The “Automatic crystal selection” option will not work on COM10 and higher in Windows 9x; this is a limitation of 16-bit DLLs. For
high-numbered ports the user should select the crystal frequency manually.]
The quad speed option will multiply all application selected baud rates by 4 by utilising the OX16C95x Times clock register (TCR)
Selecting “User Defined Override Speed” enables the fully variable baud rate slider and “Clock Pre-Divisor” list box for more flexible baud
rate generation. The actual selected baud rate is displayed above the baud rate slider.
The clock pre-divisor is used to divide the input clock prior to baud rate generation. This means a high speed crystal (E.g 50MHz) can be
pre-divided to generate standard baud rates (In this case 50 / 27.125 = 1.8433 MHz, which will emulate a 1.8432 MHz crystal with less than
0.01% bit rate error). Alternatively, the pre-divisor could be switched off to allow data rates up to 12.5Mbps to be generated.
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