Rastergraf
1-8 General Information
1.4 Specifications for the Eclipse3
The Eclipse3 are available in several configurations:
Analog
:
Borealis graphics controller and 16 or 32 MB display
memory
DVI:
Borealis graphics controller and 16 or 32 MB display
memory and DVI-I DVI/VGA connector. Note that the
Eclipse3CPCI and Eclipse3PCI have both VGA and DVI-I
connectors.
Special Order
:
LEDs, LM75 thermal sensor, Serial EEPROM, Conformal
Coating, Extended Temperature. Rear Panel I/O (CPCI J2).
Standard Features for Eclipse3 Boards
Graphics Processor:
Rastergraf Borealis 2D/3D High Performance 128-Bit
Graphics Processor has vector and pixblt functions and
programmable video timing. It supports SGRAM color and
write-per-bit register functions and includes a VGA core.
The maximum supported frequencies are 250 MHz for the
pixel clock and 100 MHz for the memory clock.
Display Memory:
Display memory is 16 MB or 32 MB of 128-bits/word, byte
addressable, no-wait state SGRAM.
16 MB of SGRAM gives eight pages of 1600 x 1200 using
8-bit pixels, four pages using 16-bit pixels, or two pages
using 32 bpp. 24 bpp packed pixel mode is not supported.
EEPROM Memory:
128 KB Flash EEPROM contains the Rastergraf Quad
Image BIOS (QIB) that supports SPARC FCode, VGA
BIOS, DVI, and Sync-On-Green (SOG). A user jumper
enables the QIB to select SOG.
Graphics Display:
The Borealis chip has an internal 250 MHz RAMDAC. It
has a 256 entry Look Up Table (LUT), which is converts 8-
bit pixels into full 24-bit RGB pixels. The RAMDAC has a
programmable four color bit-mapped 64 x 64 cursor. It
supports VGA and common non-interlaced displays
ranging from 640 x 480 up to 1920 x 1200. Signature
registers enable display analysis for end to end testing.
The pixel size can be 8, 15, 16, or 32-bits. For 15 and 16
bpp, the pixel is divided into Red, Green, and Blue: 5:5:5 or
5:6:5. For 32 bpp, pixel is divided into Red, Green, and
Blue (bits 24-31 are unused): 8:8:8:8.
