Specifications

100 AMD Geode™ GeodeROM Functional Specification
System Time and Date
32087C
Returns:
Related Functions:
INT 1Ah "Function 05h - Set Real-Time Clock Date" on page 98.
INT 1Ah "Function 0Ah - Read System Day Counter" on page 99.
11.1.12 Function 0Eh - Get Real-Time Clock Date/Time Alarm and Status
Description:
Returns settings for the RTC alarm.
Passed:
Returns:
Related Functions:
None.
11.1.13 Function 0Fh - Initialize Real-Time Clock
Description:
Causes the BIOS to update its century byte.
Passed:
Returns:
None.
Related Functions:
None.
Parameter Description
CF 0 = Success
1 = Failure
Parameter Description
AH 0Eh
Parameter Description
BH Alarm status:
00h = Alarm not enabled
01h = Alarm enabled, but will not power-up system
02h = Alarm will power-up system
CH The hour for the alarm time, in BCD
CL The minutes for the alarm time, in BCD
DH The seconds for the alarm time, in BCD
DL The day of the month for the alarm, in BCD
Parameter Description
AH 0Fh