Set Contrast Power Up State [+]; Control Power Save [+] - Husky MP2500 Manual

Set contrast power up state [+]

Entry
Exit
Description

Control power save [+]

Entry
Exit
Description
244
AH=75H
AL=mode (1=off, 2=same level, 3=level as BL)
BL=level (0..7FH)
AH=status
Use this function to specify how the LCD contrast
should be set when MP2500 is next turned on.
The default level, restored by a cold start, is 0.
AH=76H
BX=control
Registers unchanged
MP2500 enters power save modes under a variety of
conditions. Use
conditions. BX defines the conditions. If bit 0 is 0,
MP2500 will not enter power save; if bit 0 is 1, power
save is enabled but individual causes can be inhibited
by setting bits 1 to 3. Default is 11H.
Bit
D0=0
MP2500 will not enter power save
D0=1 power save is enabled and following
conditions apply:
Bit Inhibits power save:
D1=1 If waiting for data from COM1
D2=1 If waiting for data from COM2
D3=1 Reserved
D4=1 Inhibit power up on timer tick
MP2500 leaves power save mode briefly about 2.5
times a second (to service the NMI). Setting bit D4 will
inhibit this, but this is not recommended.
this function
H MP2500 System Developer's Guide
USKY
to control those