PXR40RM Datasheet, PDF (875/1434 Pages) Freescale Semiconductor, Inc – PXR40 Microcontroller

Field
10–11
PASC
Deserial Serial Peripheral Interface (DSPI)
Table 25-7. DSPI_CTARn Field Descriptions (continued)
Descriptions
After SCK Delay Prescaler. The PASC field selects the prescaler value for the delay between the last
edge of SCK and the negation of PCS. This field is only used in Master Mode. The table below lists
the prescaler values. See the ASC[0:3] field description for details on how to compute the After SCK
Delay.
PASC
00
01
10
11
After SCK Delay Prescaler Value
1
3
5
7
12–13
PDT
Delay after Transfer Prescaler. The PDT field selects the prescaler value for the delay between the
negation of the PCS signal at the end of a frame and the assertion of PCS at the beginning of the next
frame. The PDT field is only used in Master Mode. The table below lists the prescaler values. See the
DT[0:3] field description for details on how to compute the Delay after Transfer.
PDT
00
01
10
11
Delay after Transfer Prescaler Value
1
3
5
7
14–15
PBR
Baud Rate Prescal. The PBR field selects the prescaler value for the baud rate. This field is only used
in Master Mode. The Baud Rate is the frequency of the Serial Communications Clock (SCK). The
system clock is divided by the prescaler value before the baud rate selection takes place. The Baud
Rate Prescaler values are listed in the table below. See the BR[0:3] field description for details on how
to compute the baud rate.
PBR
00
01
10
11
Baud Rate Prescaler Value
2
3
5
7
Freescale Semiconductor
PXR40 Microcontroller Reference Manual, Rev. 1
25-15