Processor prep memory map, Processor prep memory map -11, Table 1-5. prep memory map example -11 – Motorola MVME2300 Series User Manual

Page 35

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Programming Model

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1-11

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Processor PREP Memory Map

The Raven/Falcon chip set can be programmed for PREP-compatible
memory map. The following table shows the PREP memory map of the
MVME2300 series from the point of view of the processor.

Notes

1. Programmable via Falcon chip set. For the MVME2300 series,

RAM size is limited to 128MB and ROM/Flash to 4MB.

2. Programmable via Raven ASIC.

3. The actual size of each ROM/Flash bank may vary.

Table 1-5. PREP Memory Map Example

Processor Address

Size

Definition

Notes

Start

End

0000 0000

top_dram

dram_size

System Memory (onboard DRAM)

1

8000 0000

BFFF FFFF

1G

Zero-Based PCI I/O Space:

0000 0000 - 3FFFF FFFF

2

C000 0000

FCFF FFFF

1G - 48M

Zero-Based PCI/ISA Memory Space:
0000 0000 - 3CFFFFFF

2, 5

FD00 0000

FEF7 FFFF

40.5M

Reserved

FEF8 0000

FEF8 FFFF

64K

Falcon Registers

FEF9 0000

FEFE FFFF

384K

Reserved

FEFF 0000

FEFF FFFF

64K

Raven Registers

6

FF00 0000

FF7F FFFF

8M

ROM/Flash Bank A

1, 3

FF80 0000

FF8F FFFF

1M

ROM/Flash Bank B

1, 3

FF90 0000

FFEF FFFF

6M

Reserved

FFF0 0000

FFFF FFFF

1M

ROM/Flash Bank A or Bank B

4

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