Samsung S3C2440A User Manual
Page 430

REAL TIME CLOCK
S3C2440A RISC MICROPROCESSOR
17-8
BCD SECOND (BCDSEC) REGISTER
Register Address R/W
Description
Reset
Value
BCDSEC 0x57000070(L)
0x57000073(B)
R/W
(by byte)
BCD second register
Undefined
BCDSEC Bit
Description
Initial
State
SECDATA
[6:4]
BCD value for second.
0 ~ 5
-
[3:0]
0 ~ 9
-
BCD MINUTE (BCDMIN) REGISTER
Register Address R/W
Description
Reset
Value
BCDMIN 0x57000074(L)
0x57000077(B)
R/W
(by byte)
BCD minute register
Undefined
BCDMIN Bit
Description
Initial
State
MINDATA
[6:4]
BCD value for minute.
0 ~ 5
-
[3:0]
0 ~ 9
-
BCD HOUR (BCDHOUR) REGISTER
Register Address R/W
Description
Reset
Value
BCDHOUR 0x57000078(L)
0x5700007B(B)
R/W
(by byte)
BCD hour register
Undefined
BCDHOUR Bit
Description
Initial
State
Reserved [7:6]
-
HOURDATA
[5:4]
BCD value for hour.
0 ~ 2
-
[3:0]
0 ~ 9
-