Struct MacSystemTimeNanosecondsUpdate

Source

#[repr(transparent)]
pub struct MacSystemTimeNanosecondsUpdate(pub u32);

Expand description

F70RM Rev. 1 section 51.7.1.32; manual text line 152548.

Tuple Fields§

§0: u32

Implementations§

Source §

impl MacSystemTimeNanosecondsUpdate

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pub const fn tsss(&self) -> u32

Timestamp Sub Seconds. The value in this field is the sub-seconds part of the update. - ADDSUB is 1: This field must be programmed with the complement of the sub-seconds part of the update value as described. Note: When ADDSUB is 1 and sub-seconds update must be 0 the TSSS field value must be programmed to the following value based on TSCTRLSSR: – TSCTRLSSR=1, TSSS=10^9=0x3B9A_CA00 – TSCTRLSSR=0, TSSS=2^31=0x8000_0000, as this cannot be accommodated in the 31 bit wide TSSS field, program (2^31)-1=0x7FFF_FFFF - ADDSUB is 0: This field must be programmed with the sub-seconds part of the update value, with an accuracy based on the TSCTRLSSR bit of the MAC_Timestamp_Control register. - TSCTRLSSR field in the MAC_Timestamp_Control register is 1: – The programmed value must be 10^9 - sub-second value. – Each bit represents 1 ns and the programmed value must not exceed 0x3B9A_C9FF. - TSCTRLSSR field in the MAC_Timestamp_Control register is 0: – The programmed value must be 2^31 - sub-second_value. – Each bit represents an accuracy of 0.46 ns. For example, to subtract 2.000000001 seconds from the system time, then the TSSS field in the MAC_Timestamp_Nanoseconds_Update register must be 0x7FFF_FFFF (that is, 2^31 - 1), when TSCTRLSSR bit in MAC_Timestamp_Control is reset and 0x3B9A_C9FF (that is, 10^9 - 1), when TSCTRLSSR bit in MAC_Timestamp_Control is set.

Source

pub const fn set_tsss(&mut self, val: u32)

Timestamp Sub Seconds. The value in this field is the sub-seconds part of the update. - ADDSUB is 1: This field must be programmed with the complement of the sub-seconds part of the update value as described. Note: When ADDSUB is 1 and sub-seconds update must be 0 the TSSS field value must be programmed to the following value based on TSCTRLSSR: – TSCTRLSSR=1, TSSS=10^9=0x3B9A_CA00 – TSCTRLSSR=0, TSSS=2^31=0x8000_0000, as this cannot be accommodated in the 31 bit wide TSSS field, program (2^31)-1=0x7FFF_FFFF - ADDSUB is 0: This field must be programmed with the sub-seconds part of the update value, with an accuracy based on the TSCTRLSSR bit of the MAC_Timestamp_Control register. - TSCTRLSSR field in the MAC_Timestamp_Control register is 1: – The programmed value must be 10^9 - sub-second value. – Each bit represents 1 ns and the programmed value must not exceed 0x3B9A_C9FF. - TSCTRLSSR field in the MAC_Timestamp_Control register is 0: – The programmed value must be 2^31 - sub-second_value. – Each bit represents an accuracy of 0.46 ns. For example, to subtract 2.000000001 seconds from the system time, then the TSSS field in the MAC_Timestamp_Nanoseconds_Update register must be 0x7FFF_FFFF (that is, 2^31 - 1), when TSCTRLSSR bit in MAC_Timestamp_Control is reset and 0x3B9A_C9FF (that is, 10^9 - 1), when TSCTRLSSR bit in MAC_Timestamp_Control is set.

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pub const fn addsub(&self) -> bool

Add or Subtract Time. When this bit is set, the time value is subtracted with the contents of the update register. When this bit is reset, the time value is added with the contents of the update register. 0b - Add time 1b - Subtract time

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pub const fn set_addsub(&mut self, val: bool)

Add or Subtract Time. When this bit is set, the time value is subtracted with the contents of the update register. When this bit is reset, the time value is added with the contents of the update register. 0b - Add time 1b - Subtract time