DKHiQV-PCI (Fab. Rev. B) User’s Guide
2
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DKHiQV-PCI (Fab. Rev. B) Subject to Change Without Notice
Revision 1.3 7/2/99
2.0
Features
The DKHiQV-PCI has the following features when running a HiQVideo
controller:
•
High Performance Flat Panel/CRT GUI Accelerator running on PCI Bus
•
Flexible display memory configurations support up to 4MB with a B65555. (The memory resides on the
daughtercard for the B65555.)
•
50-pin flat panel connector for interfacing to most types of flat panels (up to 24 data bits).
•
26-pin flat panel connector for 12 additional data bits for panels having up to a 36-bit data word width
•
15-pin standard VGA connector
•
40-pin MPEG connector for interfacing to an MPEG video card
•
Two 25-pin and one 12-pin connector for interfacing to the multimedia daughtercard.
•
PCI BIOS ROM support, located on the daughtercard
•
Flexible power supplies individually configurable to 3.3V and 5V for different blocks of the video sub-
system
•
Onboard power sequencing
•
VGA to NTSC/PAL conversion to provide S-VHS video and composite video outputs
•
Interrupt signal added for 69xxx support (INT# to INTA on PCI bus)
•
TV out and CRT enable/disable under software control
Note: Limited solution, CRT HSYNC/VSYNC only, not RGB
•
ACT125 buffer for CSYNC to TV out encoder (AD722) to met Vih spec
•
32 kHz improvement for better rise/fall times
•
+5V removed from VCC jumpers; 3.3V-only for VGA controller VCC pins
Note: +5V can be reconnected with only one wire if needed for older products.
•
RAMVCC separated from MVCC55X so that +5V can be used for DRAM while using 3.3V for VGA con-
troller VCC
•
On daughtercard header, GVCC can be 3.3V instead of 5V to allow 3V EPROM to be used on the
daughtercard if desired
•
Four new GND test points have been added and two existing GND points have been moved out from
under the daughtercard to be more accessible
•
Low voltage option for VEESAFE (1K pot, fed by VDDSAFE)