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49.4.2.34.4 Fields
Field
Function
31-30
—
Reserved
29-20
FPRESDIV
Fast Prescaler Division Factor
This 10-bit field defines the ratio between the PE clock frequency and the serial clock (Sclock) frequency
in the data bit rate portion of a CAN FD message with the BRS bit set.
The Sclock period defines the time quantum of the CAN FD protocol for the data bit rate. This field can be
written only in Freeze mode because it is blocked by hardware in other modes.
Sclock frequency = PE clock frequency / (FP 1).
NOTE: To minimize errors when processing FD frames, use the same value for FPRESDIV and
PRESDIV (in CBT or CTRL1). For more details see the first NOTE in section
.
19
—
Reserved
18-16
FRJW
Fast Resync Jump Width
This 3-bit field defines the maximum number of time quanta that a bit time can be changed by one
resynchronization in the data bit rate portion of a CAN FD message with the BRS bit set.
One time quantum is equal to the Sclock period. This field can be written only in Freeze mode because it
is blocked by hardware in other modes.
Resync Jump Width = FSJW + 1.
15
—
Reserved
14-10
FPROPSEG
Fast Propagation Segment
This 5-bit field defines the length of the propagation segment in the bit time in the data bit rate portion of a
CAN FD message with the BRS bit set. This field can be written only in Freeze mode because it is
blocked by hardware in other modes.
Propagation Segment Time = FPROPSEG × Time-Quanta.
Time-Quantum = one Sclock period.
9-8
—
Reserved
7-5
FPSEG1
Fast Phase Segment 1
This 3-bit field defines the length of phase segment 1 in the bit time in the data bit rate portion of a CAN
FD message with the BRS bit set. This field can be written only in Freeze mode because it is blocked by
hardware in other modes.
Phase Segment 1 = ( 1) × Time-Quanta.
Time-Quantum = one Sclock period.
4-3
—
Reserved
2-0
FPSEG2
Fast Phase Segment 2
Memory map/register definition
MWCT101xS Series Reference Manual, Rev. 3, 07/2019
1642
NXP Semiconductors
Содержание MWCT101 S Series
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Страница 50: ...Conventions MWCT101xS Series Reference Manual Rev 3 07 2019 50 NXP Semiconductors...
Страница 70: ...Aliased bit band regions MWCT101xS Series Reference Manual Rev 3 07 2019 70 NXP Semiconductors...
Страница 78: ...Pinout diagrams MWCT101xS Series Reference Manual Rev 3 07 2019 78 NXP Semiconductors...
Страница 96: ...WCT101xS safety concept MWCT101xS Series Reference Manual Rev 3 07 2019 96 NXP Semiconductors...
Страница 130: ...Functional description MWCT101xS Series Reference Manual Rev 3 07 2019 130 NXP Semiconductors...
Страница 200: ...Initialization application information MWCT101xS Series Reference Manual Rev 3 07 2019 200 NXP Semiconductors...
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Страница 472: ...Application Information MWCT101xS Series Reference Manual Rev 3 07 2019 472 NXP Semiconductors...
Страница 508: ...Reset memory map and register descriptions MWCT101xS Series Reference Manual Rev 3 07 2019 508 NXP Semiconductors...
Страница 528: ...Module clocks MWCT101xS Series Reference Manual Rev 3 07 2019 528 NXP Semiconductors...
Страница 634: ...SRAM configuration MWCT101xS Series Reference Manual Rev 3 07 2019 634 NXP Semiconductors...
Страница 696: ...Initialization and application information MWCT101xS Series Reference Manual Rev 3 07 2019 696 NXP Semiconductors...
Страница 818: ...Functional description MWCT101xS Series Reference Manual Rev 3 07 2019 818 NXP Semiconductors...
Страница 960: ...Functional description MWCT101xS Series Reference Manual Rev 3 07 2019 960 NXP Semiconductors...
Страница 970: ...Memory Map and Register Definition MWCT101xS Series Reference Manual Rev 3 07 2019 970 NXP Semiconductors...
Страница 992: ...ADC calibration scheme MWCT101xS Series Reference Manual Rev 3 07 2019 992 NXP Semiconductors...
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Страница 1294: ...Initialization Procedure MWCT101xS Series Reference Manual Rev 3 07 2019 1294 NXP Semiconductors...
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Страница 1514: ...Functional description MWCT101xS Series Reference Manual Rev 3 07 2019 1514 NXP Semiconductors...
Страница 1726: ...Debug and security MWCT101xS Series Reference Manual Rev 3 07 2019 1726 NXP Semiconductors...
Страница 1740: ...Initialization application information MWCT101xS Series Reference Manual Rev 3 07 2019 1740 NXP Semiconductors...
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