Freescale Semiconductor MPC5553 - Page 914

MPC5553/MPC5554 Microcontroller Reference Manual, Rev. 5
Freescale Semiconductor 20-41
20.4.4.5.4 Triggered or Change In Data Control
For triggered or change in data control, initiation of a transfer is controlled by the ht signal or by the
detection of a change in data to be serialized.
20.4.4.6 DSPI Connections to eTPU_A, eTPU_B, EMIOS and SIU
The four (MPC5554) or three (MPC5553) DSPI blocks connect to the input and output channels of the
eTPUs and the EMIOS. The MPC5554 connects to eTPU_A, eTPU_B, EMIOS, and SIU. The MPC5553
connects to eTPU_A, EMIOS, and SIU. Some of the DSPI outputs connect to the external interrupt input
multiplexing subblock in the SIU. See Section 6.4.3, “External Interrupt,” and Section 6.3.1.17, “DSPI
Input Select Register (SIU_DISR),” for details on how the DSPI deserialized outputs can be used to trigger
external interrupt requests.
20.4.4.6.1 DSPI_A Connectivity (MPC5554 Only)
The DSPI_A connects to the eTPU_B as shown in Figure 20-21. The DSPI_A is provided only in the
MPC5554.
Figure 20-21. DSPI_A Connectivity
Table 20-19 lists the DSPI_A connections.
Table 20-19. DSPI_A Connectivity Table
DSPI_A IN[n] Connected to: DSPI_A OUT[n] Connected to:
0 eTPU_B Output Channel 15 0 N/C
1
1 eTPU_B Output Channel 14 1 N/C
2 eTPU_B Output Channel 13 2 N/C
3 eTPU_B Output Channel 12 3 N/C
4 eTPU_B Output Channel 11 4 N/C
5 eTPU_B Output Channel 10 5 N/C
6 eTPU_B Output Channel 9 6 N/C
7 eTPU_B Output Channel 8 7 N/C
8 eTPU_B Output Channel 7 8 N/C
9 eTPU_B Output Channel 6 9 N/C
10 eTPU_B Output Channel 5 10 N/C
11 eTPU_B Output Channel 4 11 N/C
12 eTPU_B Output Channel 3 12 N/C
13 eTPU_B Output Channel 2 13 N/C
eTPU_B
CH 15
CH 0
•
•
•
•
DSPI_A
IN 0
IN 15
•
•