Real Time Clock 244 May 03, 2004
Philips Semiconductors Preliminary User Manual
LPC2119/2129/2194/2292/2294ARM-based Microcontroller
* Registers in the RTC other than those that are part of the Prescaler are not affected by chip Reset. These registers must be
initialized by software if the RTC is enabled.
Table 176: Real Time Clock Register Map
Name Size Description Access
Reset
Value
Address
ILR 2 Interrupt Location Register R/W * 0xE0024000
CTC 15 Clock Tick Counter. RO * 0xE0024004
CCR 4 Clock Control Register R/W * 0xE0024008
CIIR 8 Counter Increment Interrupt Register R/W * 0xE002400C
AMR 8 Alarm Mask Register R/W * 0xE0024010
CTIME0 (32) Consolidated Time Register 0 RO * 0xE0024014
CTIME1 (32) Consolidated Time Register 1 RO * 0xE0024018
CTIME2 (32) Consolidated Time Register 2 RO * 0xE002401C
SEC 6 Seconds Register R/W * 0xE0024020
MIN 6 Minutes Register R/W * 0xE0024024
HOUR 5 Hours Register R/W * 0xE0024028
DOM 5 Day of Month Register R/W * 0xE002402C
DOW 3 Day of Week Register R/W * 0xE0024030
DOY 9 Day of Year Register R/W * 0xE0024034
MONTH 4 Months Register R/W * 0xE0024038
YEAR 12 Years Register R/W * 0xE002403C
ALSEC 6 Alarm value for Seconds R/W * 0xE0024060
ALMIN 6 Alarm value for Minutes R/W * 0xE0024064
ALHOUR 5 Alarm value for Hours R/W * 0xE0024068
ALDOM 5 Alarm value for Day of Month R/W * 0xE002406C
ALDOW 3 Alarm value for Day of Week R/W * 0xE0024070
ALDOY 9 Alarm value for Day of Year R/W * 0xE0024074
ALMON 4 Alarm value for Months R/W * 0xE0024078
ALYEAR 12 Alarm value for Year R/W * 0xE002407C
PREINT 13 Prescale value, integer portion R/W 0 0xE0024080
PREFRAC 15 Prescale value, fractional portion R/W 0 0xE0024084