Motorola MVME2400 Series Manuale di Servizio Scaricare il pdf (Pagina 30)

100

101

1-10 Computer Group Literature Center Web Site

Board Description and Memory Maps

Processor CHRP Memory Map

The following table shows a recommended CHRP memory map from the

point of view of the processor.

Notes:

1. Programmable via the Hawk ASIC. For the MVME2400 series,

RAM size is limited to 256MB and ROM/FLASH to 9MB.

2. To enable the “Processor-hole” area, program the SMC to ignore

0x000A0000 - 0x000BFFFF address range and program the PHB to

map this address range to PCI memory space.

Table 1-3. CHRP Memory Map Example

Processor Address

Size Definition

Notes

Start End

0000 0000 top_dram dram_size System Memory (onboard SDRAM) 1, 2

4000 0000 FCFF FFFF 3G - 48M PCI Memory Space:

4000 0000 to FCFF FFFF

3,4,8

FD00 0000 FDFF FFFF 16M Zero-Based PCI/ISA Memory Space

(mapped to 00000000 to 00FFFFFF)

3,8

FE00 0000 FE7F FFFF 8M Zero-Based PCI/ISA I/O Space

(mapped to 00000000 to 007FFFFF)

3,5,8

FE80 0000 FEF7 FFFF 7.5M Reserved

FEF8 0000 FEF8 FFFF 64K SMC Registers

FEF9 0000 FEFE FFFF 384K Reserved

FEFF 0000 FEFF FFFF 64K PHB Registers 9

FF00 0000 FF7F FFFF 8M ROM/FLASH Bank A 1,6

FF80 0000 FF8F FFFF 1M ROM/FLASH Bank B 1,6

FF90 0000 FFEF FFFF 6M Reserved

FFF0 0000 FFFF FFFF 1M ROM/FLASH Bank A or Bank B 7

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 353 354

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Motorola MVME2400 Series Manuale di Servizio Pagina 30

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