BL = Setup Parameter (cont.)
Parameter BL Value
Standard Comm
Control Lines
BH = 13h
76543210
DCD
0 = Normal
1 = Force On
DSR
0 = Normal
1 = Force On
CTS
0 = Normal
1 = Force On
Reserved
Option Comm Parms
BH = 14h See description for Standard Comm Parms (BH = 12h)
Keyboard Parms
BH = 15h
76543210
Scroll Lock at
boot
0 = Off
1 = On
Caps Lock at
boot
0 = Off
1 = On
Num Lock at
boot
0 = On
1 = Off
Keyboard Rate
00 = Slow
01 = Normal
10 = Fast
11 = Reserved
Reserved
Added Interrupt 15 Functions F-15