When you click the Attributes
Settings button from the Encoder Configuration section of
the Port Configuration Page, CED displays a page of attributes for the
selected encoder device. The actual page that appears depends upon the
encoder device selected and only the attributes that apply to the selected
encoder appear. For a full description of all attributes for all supported
encoders, refer to [port driver appendix content].
Attribute Settings Page for the Chrontel CH7022/CH7307/CH7308
Encoders
When the Attributes Settings Page first appears,
it shows the Use Default box checked
for all attributes.
To change a default value, clear the Use
Default check box and enter a new value. For a description
of all attributes for all supported encoders, see [port
driver appendix content].
Changing I2C Settings
The I2C Settings Page allows you to specify the
I/O interface connections to devices on an sDVO port. When you click
I2C Settings from the Port Configuration
Page, the following screen appears.
sDVO Settings Page
The following table describes each field on this
page.
I2C Settings
I2C/DDC Bus Configuration
Description
Speed (KHz)
Speed of I2C bus for the device and for the EDID
device. The range for these two fields is 10-400 KHz.
Device Address Byte
Enter a device address byte for the device that
this port is connected to in these boxes:
• The I2C device address is for reading and
writing device registers. The device address byte must be in 8-bit format
with the 7-bit slave address assigned to its bits 7:1 and bit 0 set to
0.
• The DDC Device Address Byte is the I2C
device address for reading EDID data from the display through the DDC
bus.
Changing Flat Panel Settings
The Panel Settings Page allows you to specify settings
for a flat panel display connected to this sDVO port. When you click
Flat Panel Settings from the Port Configuration
Page, the following screen appears.
Panel Settings Page
The table below describes each section of this page.
Panel Settings Options
Flat Panel Settings
Description
Fixed Timing
This section indicates whether the attached display
is a fixed timing display.
Centering and Upscaling
The Use Default check
box lets you choose the default setting or either Upscaling or Force
Centering.
Bit Depth
This list lets you select a color depth for the
panel. You can choose either 18 or 24 bit color depth. The default is
18.
Flat Panel Backlight Options
This section provides options for controlling the
backlight of the flat panel display and specifying timing delays.
• The Backlight Control Methods list lets
you choose either No Backlight or Port Driver to control the backlight. If choose
Port Driver, GMCH, or ICH, you can specify the timing delays in the Timing
Delays section and the GPIO pin connections in the GPIO Pin Connections
section. The default is No Backlight.
Timing Delays
This section lets you specify timing delays for
the backlight signals as follows:
• T1-VDD active and sDVO clock/data active:
1-512, increment by 1.
• T2-DVO active and backlight enable: 2-256,
increment by 2.
• T3-Backlight disable and DVO clock/data
inactive: 2-256, increment by 2.
• T4-DVO clock/data active and inactive:
1-512, increment by 1.
• T5-Minimum from VDD inactive and active:
1-1600, increment by 50.
Note:Timers are very specific to the panel you are using. If
they are set incorrectly the display can be damaged or ruined. Please
refer to the datasheet for your display to determine the correct settings.
*Other names and brands may be claimed as the property of others. Revised April 2011