NXP Semiconductors MPC5566, Reference Manual

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Deserial Serial Peripheral Interface (DSPI)
MPC5566 Microcontroller Reference Manual, Rev. 2
20-68 Freescale Semiconductor
20.5.2 Baud Rate Settings
Table 20-31 shows the baud rate that is generated based on the combination of the baud rate prescaler PBR
and the baud rate scaler BR in the DSPI x _CTARs. The values are calculated at a 100 MHz system
frequency.
Table 20-31. Baud Rate Values
Baud Rate Divider Prescaler Values
(DSPI_CTAR[PBR])
2 3 5 7
Baud Ra
te Sc
aler
V
a
lues
(DSPI_CT
A
R[BR])
2
25.0 MHz 16.7 MHz 10.0 MHz 7.14 MHz
4
12.5 MHz 8.33 MHz 5.00 MHz 3.57 MHz
6
8.33 MHz 5.56 MHz 3.33 MHz 2.38 MHz
8
6.25 MHz 4.17 MHz 2.50 MHz 1.79 MHz
16
3.12 MHz 2.08 MHz 1.25 MHz 893 kHz
32
1.56 MHz 1.04 MHz 625 kHz 446 kHz
64
781 kHz 521 kHz 312 kHz 223 kHz
128
391 kHz 260 kHz 156 kHz 112 kHz
256
195 kHz 130 kHz 78.1 kHz 55.8 kHz
512
97.7 kHz 65.1 kHz 39.1 kHz 27.9 kHz
1024
48.8 kHz 32.6 kHz 19.5 kHz 14.0 kHz
2048
24.4 kHz 16.3 kHz 9.77 kHz 6.98 kHz
4096
12.2 kHz 8.14 kHz 4.88 kHz 3.49 kHz
8192
6.10 kHz 4.07 kHz 2.44 kHz 1.74 kHz
16384
3.05 kHz 2.04 kHz 1.22 kHz 872 Hz
32768
1.53 kHz 1.02 kHz 610 Hz 436 Hz