
Real-Time Clock
Freescale Semiconductor
25-9
25.3.9
RTC Days Counter Register (RTC_DAYS)
The RTC_DAYS register programs the day for the TOD clock. When the RTC_HOURMIN[HOUR] field
rolls over from 23 to 0, the day counter increments. It can be read or written at any time. After a write, the
time changes to the new value. This register cannot be reset because the real-time clock is always enabled
at reset. Only 16-bit accesses to this register are allowed.
25.3.10 RTC Day Alarm Register (RTC_ALRM_DAY)
The RTC_ALRM_DAY register configures the day for the alarm. The alarm settings can be read or written
at any time.
Table 25-10. RTC_STPWCH Field Descriptions
Field
Description
31–6
Reserved, must be cleared.
5–0
CNT
Stopwatch count. Contains the stopwatch countdown value plus one minute. Stopwatch counter decrements by the
minute (MIN) tick output from the RTC_HOURMIN register, so the average tolerance of the count is 0.5 minutes.
For better accuracy, enable the stopwatch by polling the RTC_ISR[MIN] bit or via the minute interrupt service
routine.
Note: Write the value of one less than the desired stopwatch timeout.
Address: 0xFC0A_8020 (RTC_DAYS)
Access: User read/write
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 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 0 0 0 0 0 0 0 0
DAYS
W
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Figure 25-10. RTC Days Counter Register (RTC_DAYS)
Table 25-11. RTC_DAYS Field Descriptions
Field
Description
31–16
Reserved, must be cleared.
15–0
DAYS
Current day count. Set to any value between 0 and 65,535 (0xFFFF).
Address: 0xFC0A_8024 (RTC_ALRM_DAY)
Access: User read/write
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 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 0 0 0 0 0 0 0 0
DAYS
W
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Figure 25-11. RTC Day Alarm Register (RTC_ALRM_DAY)
MCF5329 Reference Manual, Rev 3
Summary of Contents for MCF5329
Page 106: ...ColdFire Core 3 32 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 148: ...Cache 5 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 154: ...Static RAM SRAM 6 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 184: ...Power Management 8 18 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 204: ...Reset Controller Module 10 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 220: ...System Control Module SCM 11 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 228: ...Crossbar Switch XBS 12 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 268: ...General Purpose I O Module 13 40 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 392: ...SDRAM Controller SDRAMC 18 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 436: ...Fast Ethernet Controller FEC 19 44 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 594: ...FlexCAN 23 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 678: ...Pulse Width Modulation PWM Module 26 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 684: ...Watchdog Timer Module 27 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 704: ...DMA Timers DTIM0 DTIM3 29 12 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 754: ...UART Modules 31 34 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 770: ...I2 C Interface 32 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 866: ...Debug Module 36 50 Freescale Semiconductor MCF5329 Reference Manual Rev 3...