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Memory Map/Register Definition
MCF52211 ColdFire® Integrated Microcontroller Reference Manual, Rev. 2
Freescale Semiconductor 11-7
11.2.1.5 RTC Control Register (RTCCTL)
The real-time clock control (RTCCTL) register is used to enable the real-time clock module and specify
the reference frequency information for the prescaler.
Figure 11-6. RTC Control Register (RTCCTL)
IPSBAR
Offset: 0x03D0 (RTCCTL)
Access: User read/write
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
R 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
W
Reset0000000000000000
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R 0 0 0 0 0 0 0 0
EN
0 0 0 0 0 0
SWR
W
Reset0000000010000000
Table 11-6. RTCCTL Field Descriptions
Field Description
31–8 Reserved, should be cleared.
7
EN
RTC Enables/Disable bit. This bit enables/disables the RTC. The software reset bit (SWR) has no effect on this bit.
Bit description
0 Disable the real-time clock
1 Enable the real-time clock
6–1 Reserved, should be cleared.
0
SWR
Software Reset bit. This bit resets the RTC to its default state. However, a software reset has no effect on the EN bit.
0 No effect
1 Reset the module to its default state