PORTIBM PC Portable (uses same BIOS as XT) 002E-002F - DELL ENHANCED PARALLEL PORTIBM PC Portable (uses same BIOS as XT) SeeAlso: PORTIBM PC Portable (uses same BIOS as XT) 015Ch,PORTIBM PC Portable (uses same BIOS as XT) 026Eh,PORTIBM PC Portable (uses same BIOS as XT) 0398h 002E -W index for data port (see #P0378) 002F RW EPP command data (Table P0378) Values for Dell Enhanced Parallel Port register index: 00h bit 0: ??? 02h bit 7: port in bidirectional mode 04h bits 0 and 2: ECP/EPP mode control
PORTIBM PC Portable (uses same BIOS as XT) 002E-002F - Intel "Nonolet" Motherboard - POWER MANAGEMENT
002E ?W index for data port
002F ?W data port
code sequence posted in fido7.nice.sources by Konstantin Mohorea:
out 2Eh,0Ch
out 2Fh,75h
out 2Eh,11h
out 2Fh,00h
out 2Eh,0Dh
out 2Fh,A0h
PORTIBM PC Portable (uses same BIOS as XT) 002E-002F - NS PC87306 SuperI/O - CONFIGURATION REGISTERS InstallCheck: after a hardware reset, the first read of the index port returns 88h, and a second consecutive read always returns 00h (while read-after-write always returns the written value) Range: PORTIBM PC Portable (uses same BIOS as XT) 002Eh, PORTIBM PC Portable (uses same BIOS as XT) 015Ch, PORTIBM PC Portable (uses same BIOS as XT) 026Eh, or PORTIBM PC Portable (uses same BIOS as XT) 0398h, depending on external strapping Note: to set a register, the data port must be written twice in a row; the value is latched on the second write 002E RW configuration register index 002F RW configuration register data