17.4.2 Register Bit Allocation

Depending on the CLOCK_MODE setting, the bit mapping is given in the following table.

Table 17-5. Register Bit Allocation
Clock Mode	Date Time Alarm Compare Register	Bits	Description
0	Lower	[31:0]	Binary Count[31:0]
0	Upper	[10:0]	Binary Count[42:32]
1	Lower	[7:0]	Seconds
		[15:8]	Minutes
		[23:16]	Hours
		[31:24]	Day
	Upper	[7:0]	Month
		[15:8]	Year
		[23:16]	Weekday
		[29:24]	Week

The following table shows the Register Map for RTC.

Table 17-6. Register Map for RTC
Register Name	Address Offset	R/W	Description
Table 17-7	0x00	R/W	The control register is an 11-bit register that defines the operations of the RTC.
Table 17-8	0x04	R/W	This register should only be written when the RTC is stopped—when the control register bit 0 reads as a '0'.
Table 17-9	0x08	R/W	The value of the prescaler can be written here. This register should only be written when the RTC is stopped—when the control register bit 0 reads as a '0'.
Table 17-10	0x0C-0x18	R/W	Sets and reads the alarm time.
Table 17-11	0x20 -0x6C	R/W	Allows the individual bytes of the date and timer to be read; and registers can be written when the RTC is running.