NXP Semiconductors LPC24XX UM10237 - Manual (Page 654)

UM10237_4 © NXP B.V. 2009. All rights reserved.
User manual Rev. 04 — 26 August 2009 654 of 792
NXP Semiconductors
UM10237
Chapter 26: LPC24XX Real-Time Clock (RTC) and battery RAM
6.3.2 Consolidated Time Register 1 (CTIME1 - 0xE002 4018)
The Consolidate Time Register 1 contains the Day of Month, Month, and Year values.
6.3.3 Consolidated Time Register 2 (CTIME2 - 0xE002 401C)
The Consolidate Time Register 2 contains just the Day of Year value.
6.4 Time Counter Group
The time value consists of the eight counters shown in Table 26–576 and Table 26–577 .
These counters can be read or written at the locations shown in Table 26–577 .
Table 573. Consolidated Time register 0 (CTIME0 - address 0xE002 4014) bit description
Bit Symbol Description Reset
value
5:0 Seconds Seconds value in the range of 0 to 59 NA
7:6 - Reserved, user software should not write ones to reserved bits.
The value read from a reserved bit is not defined. NA
13:8 Minutes Minutes value in the range of 0 to 59 NA
15:14 - Reserved, user software should not write ones to reserved bits.
The value read from a reserved bit is not defined. NA
20:16 Hours Hours value in the range of 0 to 23 NA
23:21 - Reserved, user software should not write ones to reserved bits.
The value read from a reserved bit is not defined. NA
26:24 Day Of Week Day of week value in the range of 0 to 6 NA
31:27 - Reserved, user software should not write ones to reserved bits.
The value read from a reserved bit is not defined. NA
Table 574. Consolidated Time register 1 (CTIME1 - address 0xE002 4018) bit description
Bit Symbol Description Reset
value
4:0 Day of Month Day of month value in the range of 1 to 28, 29, 30, or 31
(depending on the month and whether it is a leap year).
NA
7:5 - Reserved, user software should not write ones to reserved bits.
The value read from a reserved bit is not defined. NA
11:8 Month Month value in the range of 1 to 12. NA
15:12 - Reserved, user software should not write ones to reserved bits.
The value read from a reserved bit is not defined. NA
27:16 Year Year value in the range of 0 to 4095. NA
31:28 - Reserved, user software should not write ones to reserved bits.
The value read from a reserved bit is not defined. NA
Table 575. Consolidated Time register 2 (CTIME2 - address 0xE002 401C) bit description
Bit Symbol Description Reset
value
11:0 Day of Year Day of year value in the range of 1 to 365 (366 for leap years). NA
31:12 - Reserved, user software should not write ones to reserved bits.
The value read from a reserved bit is not defined. NA