BIOS Support
7-9
7
Displaying Keyboard Mode Indicator
If the display of the Keyboard Mode Indicator is enabled it will be redrawn at
the end of every INT 10h call (Display software Interrupts) and whenever the
×
key is pressed. If anything has been written in the location of the status
symbol, it will be overdrawn up to two characters on each end. If it is disabled,
the user is responsible for clearing the Indicator on the screen.
Power Management BIOS Support
BIOS power management services are available in INT 15h.
Power / Battery Status
Determining the charging rate status while a unit is docked in a cradle and
determining the battery capacity status while a unit is outside of a cradle is
done with software interrupt 15h. The following is a description of required
inputs and the possible outputs.
Entry:
AX = 530A hex
BX = 0001 (all devices)
Exit:
---- Parms OK ----
CF = 0 success.
BH = Docked/not Docked status
BH == 0 is not docked (corresponds to AC
off-line)
BL has battery status (same as it ever
was i.e. standard)
0 = OK
1 = low main battery
2 = critical (very low main)
battery
255 = unknown
BH == 1, is docked (corresponds to AC online)
BL has battery charging status
0 = trickle charge (fully charged)
1 = charging
2 = just started
255 = unknown
CL = remaining battery life
255 = unknown
---- Failed ----
CF = 1 failure
AH = 09 unrecognized device id (bx<>0001)
Summary of Contents for Trakker T2090
Page 1: ...TRAKKER T2090Batch Hand HeldComputer P N 067212 003 User s Manual ...
Page 4: ......
Page 14: ......
Page 19: ...Getting Started 1 ...
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Page 33: ...User Interface 2 ...
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Page 55: ...Application Development 3 ...
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Page 61: ...Application Functions 4 ...
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Page 127: ...Reader Command Reference 5 ...
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Page 145: ...Configuration Command Reference 6 ...
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Page 187: ...BIOS Support 7 ...
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Page 205: ...Hardware Specifications 8 ...
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Page 213: ...Demo Software A ...
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Page 231: ...Microsoft Visual C C Settings B ...
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Page 237: ...Full ASCII Charts C ...
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