PMC-700-X00 User’s Manual
DY 4 Systems Inc.
1-6
809789 Revision 2 December 2000
PCI Address
Decoding
The PMC-700’s PCI interface has seven base address regions as shown in
Table 1.1. For a complete address map refer to the Permedia3 Reference
Guide.
Table 1.1:
PCI Address Regions
Note
When the address range allocated for memory exceeds the memory size, the
contents of memory are imaged throughout the allocated address range.
Local Registers
All registers on the PMC-700-X00 are part of the Permedia3 device and are
described in the 3DLabs Permedia3 Reference Guide available from 3DLabs.
Memory
SDRAM
The PMC-700-X00 is equipped with 64 Mbytes (eight 64 Mbit devices) of
SDRAM. 32 Mbytes of this is accessible through the Permedia3 to support 3D
operations. The SDRAM is byte, word, and long word accessible. The
SDRAM supports single and burst cycles from the basecard CPU.
The SDRAM is used to store colour, depth, stencil, and texture data.
Input/Output
DVI Output
The PMC-700-X00 provides one DVI-compatible output (four TMDS pairs,
one clock, and three data) to be used to interface to a DVI-compliant display
device.
VGA Output
The PMC-700-X00 provides one VGA output to be used to interface to a
VGA-compliant display device.
Region
Address Space
Description
Size
Config
Configuration
PCI Configuration
256 bytes
Zero
Memory
Control Registers
128 Kbytes
One
Memory
Memory Aperture One
64 Mbytes
Two
Memory
Memory Aperture Two
64 Mbytes
Three
I/O
Indirect Access I/O
16 bytes
ROM
Memory
Expansion ROM
64 Kbytes
VGA
Memory & I/O
VGA Access
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