Zynq UltraScale+ Devices Register Reference > Module Summary > RTC Module > CALIB_WRITE (RTC) Register
Register Name | CALIB_WRITE |
---|---|
Relative Address | 0x0000000008 |
Absolute Address | 0x00FFA60008 (RTC) |
Width | 21 |
Type | woWrite-only |
Reset Value | 0x00000000 |
Description | One Second Time Based. |
This register stores the value that is used to generate one second based on the oscillator period
Field Name | Bits | Type | Reset Value | Description |
---|---|---|---|---|
Fraction_En | 20 | woWrite-only | 0x0 | Enable the compensation due to fractional inaccuracy. |
Fraction_Data | 19:16 | woWrite-only | 0x0 | This value represents the number of cycles at which the RTC gets one clock cycle ahead of the real time due to the cumulative fractional inaccuracy of the Oscillator |
Max_Tick | 15:0 | woWrite-only | 0x0 | This value multiplied by the period of the oscillator should equal to 1 second |