Installation; Reference Clocks; 14Mhz Reference Clock; 32Khz Reference Clock - Intel CHIPS DKHiQV-AGP User Manual

3
3.0

Installation

The DKHiQV-AGP board is very flexible and can be configured for a variety options such as multimedia in-
terfaces supported by the HiQVideo™ 69000 controller. The DK board support a variety of direct panel and
CRT interfaces. The DK board also provides a simple and accurate way to measure the power dissipation
of various blocks of the subsystem such as the bus interface, the video memory interface and the display
logic.
The DK boards have bus connectors with gold fingers which connect to the AGP bus port. The board pro-
vides the capability to evaluate all the following interfaces: bus, flat panel, CRT, memory, MPEG, multime-
dia card and composite video. The boards also provide a mixed voltage capability with the ability to
measure power for different blocks of the video subsystem.
Refer to the 69000 Data Book for the available resolution modes.
The user may check the power-down operation of the HiQVideo™ controller using a jumper (W1) on the DK
board.
The DKHiQV-AGP board also provides such features as:
z
DC-to-DC Conversion
z
Mixed Voltage Interface
z
Power Sequencing
z
Backlight Control
3.1

Reference Clocks

3.1.1

14MHz Reference Clock

The 69000 controller uses a TTL 14MHz signal connected to pin C3 as the reference clock. This clock pro-
vide a timing reference to all the internal logic blocks such as sequencer, CRT controller and graphics con-
troller.
3.1.2

32KHz Reference Clock

Panel power sequencing also requires a reference clock. Pin T4 supplies the 69000 with a 32 KHz signal
for this purpose. This clock also refreshes the DRAM. If the system uses non-self-refresh DRAMs, do not
apply this external 32 KHz clock to the chip (Y2 is not stuffed). This configuration generates a 37.3 KHz
signal from the internal 14 MHz power sequencing clock. Please refer to the XRCF[3] definition in the data
sheet for details.
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DKHiQV-AGP (Fab. Rev. A) Subject to Change Without Notice
DKHiQV-AGP (Fab. Rev. A) User's Guide
Revision 1.0 7/13/98