PORTIBM PC Portable (uses same BIOS as XT) 01E8-01EF - Headland HL21 & Acer M5105 chipsets - SYSTEM CONTROL

01ED  RW  select internal register. Data to/from 01EF
01EE  R-  ???
01EF  RW  register value
	05h  = 1000xxxx for low CPU(Central Processing Unit) The microprocessor which executes programs on your computer. clock speed (4MHz on Morse/Mitac)
	     = 0xxxxxxx for high CPU(Central Processing Unit) The microprocessor which executes programs on your computer. clock speed (16MHz on Morse/Mitac)
	10h memory size
	   bits 2-0 = size
		   (undefined,512K,640K,1024K,2560K,2048K,4096K,undef.)
	14h ???
	   bit 2: 384K RAM(Random Access Memory)	See also DRAM, SRAM. of first 1024K relocated to top of memory
                                                                                

PORTIBM PC Portable (uses same BIOS as XT) 01E8-01EF - 3rd (Tertiary) EIDE Controller
Range:	01F0-01F7 for primary controller, 0170-0177 for secondary controller
SeeAlso: PORTIBM PC Portable (uses same BIOS as XT) 0168h-016Fh,PORTIBM PC Portable (uses same BIOS as XT) 0170h-0177h,PORTIBM PC Portable (uses same BIOS as XT) 01F0h-01F7h