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
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
. The DSPI_A is provided only in the
MPC5554.
Figure 20-21. DSPI_A Connectivity
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
•
•
Summary of Contents for MPC5553
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