Memory; Onboard Dram Memory; System Memory Map - DIGITAL-LOGIC MICROSPACE PCC-P5 Technical User's Manual

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4.8 Memory

4.8.1 Onboard DRAM Memory

Speed:
Size:
Bits:
Capacity:
Bank:
Size combinations:

4.8.2 System Memory Map

The CPU used as a central processing unit on the MICROSPACE PC has a memory address space which is
defined by 32 address bits. Therefore, it can address 1GByte of memory. The memory address MAP is as
follows:
CPU P5
Address
000000 - 09FFFFh
0A0000 - 0BFFFFh
0C0000 - 0CFFFFh
0D0000 - 0DFFFFh
0E0000 - 0EFFFFh
0F0000 - 0FFFFFh
100000 - 1FFFFFh
200000 - FFFFFFh
Attention: Only the D-Segment is free for the user, to use EMM386 or HIMEM programs
If the DOC2000 module is used, the D-Segment is also used, and no EMM386
may be used. For the HIMEM use the EMM386 with the option NOEMS !
Urgent: The AMI POWER BIOS for the P5 has a size of 128k and this value is definitiv,
that means may be not decreased !
60ns
2 x 72pins SIMM
36 Bit
8 MBytes, 16 MBytes, 32 MBytes, 64 MBytes
allways two banks must be equipped
Bank1 Number of
Big SIMMs
1MBx36 2
2MBx36 2
4MBx36 2
8MBx36 2
Size Function / Comments
640 KBytes Onboard DRAM for DOS applications
128 KBytes CGA, EGA, LCD Video RAM 128kB
64 KBytes Reserved for expansion bus ROMs:
C000 - CC00 for VGA BIOS
64 KBytes Free or DiskOnChip DOC2000 Module from MSystems
64 KBytes PCI-System BIOS incl. SCSI-BIOS
64 KBytes PCI-System BIOS incl. SCSI-BIOS
1 MByte DRAM for extended onboard memory
14 MBytes DRAM for extended onboard memory
Total
8 MBytes
16 MBytes
32 MBytes
64 MBytes
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PCCP5 Manual V2.3
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