
ML62Q1000 Series User's Manual
Chapter 16 Simplified RTC
FEUL62Q1000
16-7
Description of Operation
16.3
The simplified RTC starts operation after a power-on reset is released. Since the value of the PORSTAT bit of the
SRTCMAS register is "1" after the power-on reset is released, data needs to be written to the SRTCMAS register to set
the minute and second. See Figure 16-3 "Simplified RTC Setting Example for Writing Time Data" for the procedure of
writing to the SRTCMAS register.
The SRTCMAS register is initialized only by a power-on reset. The counting operation is continued when any other
system resets occur.
Table 16-1 shows a list of count values of each counter.
Table 16-2 Count Value of Each Counter
Counter name
Count value
Second
counter
SRTCSEC40,20,10
0x0 to 0x5
SRTCSEC4,2,1
0x0 to 0x9
Minute
counter
SRTCMIN40,20,10
0x0 to 0x5
SRTCMIN4,2,1
0x0 to 0x9
16.3.1 Simplified RTC Time Data Writing Operation
Figure 16-2 shows the timing chart when data is written to the SRTCMAS register.
Writing data to the write-enabled SRTCMAS register causes T1HZR/T2HZR of the time base counter to be initialized.
Figure 16-2 Timing Chart When Data is Written to SRTCMAS Register
SRTCMAS
Write
SRTCMAS
T1HZ
0x1234
System clock
SYSTEMCLK
0x1235
0x0000
0x0001
0x0002
0x1234
Initialize
0x3C
SRTCACP
Write
0xC3
1 sec
Содержание ML62Q1000 Series
Страница 17: ...Chapter 1 Overview...
Страница 112: ...Chapter 2 CPU and Memory Space...
Страница 154: ...Chapter 3 Reset Function...
Страница 166: ...Chapter 4 Power Management...
Страница 196: ...Chapter 5 Interrupts...
Страница 248: ...Chapter 6 Clock generation Circuit...
Страница 274: ...Chapter 7 Low Speed Time Base Counter...
Страница 291: ...Chapter 8 16 Bit Timer...
Страница 320: ...Chapter 9 Functional Timer FTM...
Страница 382: ...Chapter 10 Watchdog Timer...
Страница 402: ...Chapter 11 Serial Communication Unit...
Страница 456: ...Chapter 12 I2 C Bus Unit...
Страница 491: ...Chapter 13 I2 C Master...
Страница 512: ...Chapter 14 DMA Controller...
Страница 531: ...Chapter 15 Buzzer...
Страница 550: ...Chapter 16 Simplified RTC...
Страница 559: ...Chapter 17 GPIO...
Страница 594: ...Chapter 18 External Interrupt Function...
Страница 612: ...Chapter 19 CRC Generator...
Страница 632: ...Chapter 20 Analog Comparator...
Страница 644: ...Chapter 21 D A Converter...
Страница 655: ...Chapter 22 Voltage Level Supervisor...
Страница 676: ...Chapter 23 Successive Approximation Type A D Converter...
Страница 709: ...Chapter 24 Regulator...
Страница 714: ...Chapter 25 Flash Memory...
Страница 743: ...Chapter 26 Code Option...
Страница 750: ...Chapter 27 LCD Driver...
Страница 788: ...Chapter 28 On Chip Debug Function...
Страница 795: ...Chapter 29 Safety Function...
Страница 813: ...Appendix A...
Страница 881: ...Revision History...