Preliminary
Real Time Clock
S3C2451
RISC MICROPROCESSOR
14-10
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
14.6.5 RTC ALARM CONTROL (RTCALM) REGISTER
The RTCALM register determines the alarm enable and the alarm time. Note that the RTCALM register
generates the alarm signal through both ALMINT and ALMWKUP as power mode.
For using ALMINT and ALMWKUP, ALMEN must be enable.
If compare value is year, ALMEN and YEAREN must be enable.
If compare values are year,mon,date,hour,min and sec, ALMEN,YEAREN,MONEN,DATEEN,HOUREN,MINEN
and SECEN must be enable.
Register
Address
R/W
Description
Reset Value
RTCALM 0x57000050 R/W RTC
alarm control Register
0x0
RTCALM
Bit
Description
Initial State
Reserved [7]
0
ALMEN [6]
Alarm
global
enable
0 = Disable, 1 = Enable
Note: For using ALMINT and ALMWKUP, set
ALMEN=1’b1
0
YEAREN
[5]
Year alarm enable
0 = Disable, 1 = Enable
0
MONEN [4]
Month
alarm
enable
0 = Disable, 1 = Enable
0
DATEEN
[3]
Date alarm enable
0 = Disable, 1 = Enable
0
HOUREN
[2]
Hour alarm enable
0 = Disable, 1 = Enable
0
MINEN [1]
Minute
alarm
enable
0 = Disable, 1 = Enable
0
SECEN
[0]
Second alarm enable
0 = Disable, 1 = Enable
0