REAL TIME CLOCK S3C2440A RISC MICROPROCESSOR
17-6
ALARM SECOND DATA (ALMSEC) REGISTER
Register Address R/W Description Reset Value
ALMSEC 0x57000054(L)
0x57000057(B) R/W
(by byte) Alarm second data register 0x0
ALMSEC Bit Description Initial State
Reserved [7]
0
SECDATA [6:4] BCD value for alarm second.
0 ~ 5 000
[3:0] 0 ~ 9 0000
ALARM MIN DATA (ALMMIN) REGISTER
Register Address R/W Descrip tion Reset Value
ALMMIN 0x57000058(L)
0x5700005B(B) R/W
(by byte) Alarm minute data register 0x00
ALMMIN Bit Description Initial Stat e
Reserved [7]
0
MINDATA [6:4] BCD value for alarm minute.
0 ~ 5 000
[3:0] 0 ~ 9 0000
ALARM HOUR DATA (ALMHOUR) REGISTER
Register Address R/W Description Reset Valu e
ALMHOUR 0x5700005C(L)
0x5700005F(B) R/W
(by byte) Alarm hour data register 0x 0
ALMHOUR Bit Description Init ial State
Reserved [7:6]
00
HOURDATA [5:4] BCD value for alarm hour.
0 ~ 2 00
[3:0] 0 ~ 9 0000