Deserial Serial Peripheral Interface (DSPI)
MPC5510 Microcontroller Family Reference Manual, Rev. 1
Freescale Semiconductor
23-59
Preliminary
23.5.3
Delay Settings
shows the values for the delay after transfer (t
DT
) and CS to SCK delay (t
CSC
) that can be
generated based on the prescaler values and the scaler values set in the DSPI
x
_CTARs. The values
calculated assume a 66 MHz system frequency.
Table 23-30. Baud Rate Values
Baud Rate Divider Prescaler Values
(DSPI_CTAR[PBR])
2
3
5
7
Baud
Rate
Sca
le
r V
a
lues
(DSPI_CT
AR[BR
])
2
16.67 MHz
11.11 MHz
6.67 MHz
4.76 MHz
4
8.33 MHz
5.55 MHz
3.33 MHz
2.38 MHz
6
5.55 MHz
3.70 MHz
2.22 MHz
1.59 MHz
8
4.17 MHz
2.78 MHz
1.67 MHz
1.19 MHz
16
2.08 MHz
1.37 MHz
833.3 kHz
595.3 kHz
32
1.04 MHz
693 kHz
417 kHz
297 kHz
64
521 kHz
347 kHz
208 kHz
149 kHz
128
261 kHz
174 kHz
104 kHz
75 kHz
256
130 kHz
87.7 kHz
52.1 kHz
37.2 kHz
512
65.1 kHz
43.4 kHz
26.1 kHz
18.6 kHz
1024
32.5 kHz
21.7 kHz
13 kHz
9.33 kHz
2048
16.3 kHz
10.8 kHz
6.51 kHz
4.65 kHz
4096
8.13 kHz
5.42 kHz
3.25 kHz
2.33 kHz
8192
4.07 kHz
2.71 kHz
1.63 kHz
1.16 kHz
16384
2.03 kHz
1.36 kHz
813 Hz
581 Hz
32768
1.02 kHz
680 Hz
407 Hz
291 Hz