UM10503
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© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1.3 — 6 July 2012
928 of 1269
NXP Semiconductors
UM10503
Chapter 35: LPC43xx Real-Time Clock (RTC)
35.6 Register description
[1]
This register value is not changed by reset.
In addition to the RTC registers, 64 general purpose registers are available to store data
when the main power supply is switched off. The general purpose registers reside in the
RTC power domain and can be battery powered.
Table 782. Register overview: RTC (base address 0x4004 6000)
Name
Access Address
offset
Description
Reset
value
Reference
ILR
W
0x000
Interrupt Location Register
0x0
-
-
0x004
Reserved
0x00
-
CCR
R/W
0x008
Clock Control Register
0x00
CIIR
R/W
0x00C
Counter Increment Interrupt Register 0x00
AMR
R/W
0x010
Alarm Mask Register
-
CTIME0
R
0x014
Consolidated Time Register 0
-
CTIME1
R
0x018
Consolidated Time Register 1
-
CTIME2
R
0x01C
Consolidated Time Register 2
-
SEC
R/W
0x020
Seconds Register
-
MIN
R/W
0x024
Minutes Register
-
HRS
R/W
0x028
Hours Register
-
DOM
R/W
0x02C
Day of Month Register
-
DOW
R/W
0x030
Day of Week Register
-
DOY
R/W
0x034
Day of Year Register
-
MONTH
R/W
0x038
Months Register
-
YEAR
R/W
0x03C
Years Register
-
CALIBRATION
R/W
0x040
Calibration Value Register
-
-
-
0x044 -
0x05C
-
-
ASEC
R/W
0x060
Alarm Seconds Register
-
AMIN
R/W
0x064
Alarm Minutes Register
-
AHRS
R/W
0x068
Alarm Hours Register
-
ADOM
R/W
0x6C
Alarm Day of Month Register
-
ADOW
R/W
0x070
Alarm Day of Week Register
-
ADOY
R/W
0x074
Alarm Day of Year Register
-
AMON
R/W
0x078
Alarm Month Register
-
AYRS
R/W
0x07C
Alarm Year Register
-
Table 783. Register overview: REGFILE (base address 0x4004 1000)
Name
Access
Address
offset
Description
Reset
Value
REGFILE0
R/W
0x000
General purpose storage register
0x0
to
REGFILE63
R/W
0x0FC
General purpose storage register
0x0