Motorola MVME2300 Series User Manual download pdf (Page 37)

Programming Model

http://www.motorola.com/computer/literature 1-13

PCI Memory Maps

The PCI memory map is controlled by the Raven ASIC and the Universe

ASIC. The Raven ASIC and the Universe ASIC have flexible

programming Map Decoder registers to customize the system to fit many

different applications.

Default PCI Memory Map

After a reset, the Raven ASIC and the Universe ASIC turn all the PCI slave

map decoders off. Software must program the appropriate map decoders

for a specific environment.

PCI CHRP Memory Map

The following table shows a PCI memory map of the MVME2300 series

that is CHRP-compatible from the point of view of the PCI local bus.

Table 1-7. PCI CHRP Memory Map

PCI Address

Size Definition Notes

Start End

0000 0000 top_dram dram_size Onboard ECC DRAM 1

4000 0000 EFFF FFFF 3G - 256M VMEbus A32/D32 (Super/Program) 3

F000 0000 F7FF FFFF 128M VMEbus A32/D16 (Super/Program) 3

F800 0000 F8FE FFFF 16M - 64K VMEbus A24/D16 (Super/Program) 4

F8FF 0000 F8FF FFFF 64K VMEbus A16/D16 (Super/Program) 4

F900 0000 F9FE FFFF 16M - 64K VMEbus A24/D32 (Super/Data) 4

F9FF 0000 F9FF FFFF 64K VMEbus A16/D32 (Super/Data) 4

FA00 0000 FAFE FFFF 16M - 64K VMEbus A24/D16 (User/Program) 4

FAFF 0000 FAFF FFFF 64K VMEbus A16/D16 (User/Program) 4

FB00 0000 FBFE FFFF 16M - 64K VMEbus A24/D32 (User/Data) 4

FBFF 0000 FBFF FFFF 64K VMEbus A16/D32 (User/Data) 4

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 281 282

No comments

Motorola MVME2300 Series User Manual Page 37