S3C24A0 Datasheet, PDF (163/487 Pages) Samsung semiconductor – APPLICATION PROCESSOR FOR 2.5G/3G MOBILE PHONES

BSW rv0.1-0417-N01
REAL TIME CLOCK
S3C24A0 RISC MICROPROCESSOR
RTC ROUND RESET REGISTER (RTCRST)
Register
RTCRST
Address
0x4420006C
R/W
R/W
(by byte)
Description
RTC round reset Register
Reset Value
0x0
RTCRST
SRSTEN
SECCR
Bit
Description
[3] Round second reset enable
0 = Disable, 1 = Enable
[2:0] Round boundary for second carry generation.
011 = over than 30 sec
100 = over than 40 sec
101 = over than 50 sec
NOTE : If other values(0,1,2,6,7) are set, no second carry is
generated. But second value can be reset.
Initial State
0
000
BCD SECOND REGISTER (BCDSEC)
Register
BCDSEC
Address
0x44200070
R/W
R/W
(by byte)
Description
BCD second Register
BCDSEC
SECDATA
Bit
Description
[6:4] BCD value for second
from 0 to 5
[3:0] from 0 to 9
BCD MINUTE REGISTER (BCDMIN)
Register
BCDMIN
Address
0x44200074
R/W
R/W
(by byte)
Description
BCD minute Register
BCDMIN
MINDATA
Bit
Description
[6:4] BCD value for minute
from 0 to 5
[3:0] from 0 to 9
Reset Value
Undefined
Initial State
-
-
Reset Value
Undefined
Initial State
-
-
10-8
Preliminary product information describes 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.