PORTIBM PC Portable (uses same BIOS as XT) 0068-006F - HP Vectra Human Interface Link
SeeAlso: PORTIBM PC Portable (uses same BIOS as XT) 0060h"KEYBOARD"

0068  -W  (HP-Vectra) control buffer (HP commands) (see #P0408)
0069  R-  (HP-Vectra) SVC (keyboard request SerViCe port)
006A  -W  (HP-Vectra) Acknowledge (clear processing, done)
006C-006F	HP-HIL	(Human Interface Link = async. serial inputs 0-7)


(Table P0408)
Values for HP Vectra control buffer command code:
 00h-54h insert standard key make code into 8041 scancode buf
 55h-77h insert HP key make code into 8041 scancode buffer
 7Ah	pass through next data byte
 7Bh	set RAM(Random Access Memory)	See also DRAM, SRAM. Switch to 0
 7Ch	set RAM(Random Access Memory)	See also DRAM, SRAM. Switch to 1 (default)
 7Dh	set CRT Switch to 0
 7Eh	set CRT Switch to 1 (default)
 7Fh	reserved
 80h-D4h insert standard key break code into scancode buffer
 D5h-F7h insert HP key break code into scancode buffer
 F8h	enable AutoPoll
 F9h	disable AutoPoll
 FAh-FEh reserved
 FFh	keyboard overrun