MEM 80C00000h - Compaq Deskpro 386 system memory board register                 
Size:	BYTE

80C00000  R   Diagnostics register (see #M0055)
80C00000   W  RAM(Random Access Memory)	See also DRAM, SRAM. relocation register (see #M0056)


Bitfields for Compaq Deskpro 386 diagnostics register:
Bit(s)	Description	(Table M0055)
 7	=0 memory expansion board is installed
 6	=0 second 1 MB of system memory board is installed
 5-4	base memory
	00 set to 640 KB
	01 invalid
	10 set to 512 KB
	11 set to 256 KB
 3	parity correct in byte 3
 2	parity correct in byte 2
 1	parity correct in byte 1
 0	parity correct in byte 0 (in 32-bit double word)
SeeAlso: #M0056


Bitfields for Compaq Deskpro 386 RAM(Random Access Memory)	See also DRAM, SRAM. relocation register:
Bit(s)	Description	(Table M0056)
 7-2	reserved, always write 1's.
 1	=0  Write-protect 128-Kbyte RAM(Random Access Memory)	See also DRAM, SRAM. at FE0000.
	=1  Do not write-protect RAM(Random Access Memory)	See also DRAM, SRAM. at FE0000.
 0	=0  Relocate 128-Kbyte block at FE0000 to address 0E0000
	=1  128-Kbyte RAM(Random Access Memory)	See also DRAM, SRAM. is addressed only at FE0000.
SeeAlso: #M0055