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Real-time power savings, Optimizing battery operation – Texas Instruments 4000M User Manual

Page 98

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this mode. The system remains in auto-suspend mode until
activity is detected on a monitored device defined in Setup
or until the Auto Wakeup Interval (selected in Setup) expires.

When the Auto Wakeup Interval expires (5 to 20 minutes),
the system returns to normal operation for the duration of
the selected System Timeout Interval (1 to 15 minutes), at
which time the system again enters the auto-suspend mode.

Real-Time Power Savings

Your computer has a special power-saving feature that can
activate in real time while you are running your
application. This feature is implemented by a special device
driver called

BATTERY.PRO

in the

CONFIG.SYS

file:

DEVICE=C:\UTILS\BATTERY.PRO [/Ln] [/Sn] [/MAP]

where:

/Ln specifies the power-savings level (0 through 4)
described elsewhere in this chapter. If the /Ln switch is
omitted, the default value of 2 is used.

/Sn similar to /Ln but tells the system what to use under
Windows when the computer is powered by AC. Mainly for
sound software that doesn’t use Application Program
Manager (APM).

/MAP moves the extended

BIOS

data area within the base

640 KB system memory. The upper 1 KB of system memory
is mapped to provide a corrective 640 KB of system
memory. This

switch should be used with applications such

as

QEMM

to enable them to manage the high memory area

more efficiently.

BATTERY.PRO

must be the first device driver

in the

CONFIG.SYS

file to effectively use this switch.

Optimizing Battery Operation

Power-Saving Utilities 5-5