MPC5553/MPC5554 Microcontroller Reference Manual, Rev. 5
Freescale Semiconductor 2-63
2.4.2 ETPUA[16:31]
ETPUA[16:23,30:31] connect to external pins for both the input and output function.
ETPUA[16:21,24:29] are serialized out on the DSPI B and DSPI D modules and ETPUA[22:23,30:31] are
not serialized out. ETPUA[24:29] connect to external pins for the output function only. Figure 2-6 shows
the connections for ETPUA[16] and applies to ETPUA[16:21]. Figure 2-7 shows the connections for
ETPUA[24] and applies to TPUA[24:29]. The full ETPUA to DSPI B connections are given in Table 2-6,
and ETPU A to DSPI D in Table 2-7. Although not shown in Figure 2-6, the output channels of
ETPUA[16:23] are also connected to the ETPUA[4:11]_ETPUA[16:23]_GPIO[118:125] pins.
Figure 2-6. ETPUA[16:21] — DSPI B and DSPI D I/O Connections
Figure 2-7. ETPUA[24:29] — DSPI B and DSPI D I/O Connections
214
113
012
Table 2-6. ETPUA[16:31] — DSPI B I/O Mapping
DSPI B Serialized
Inputs / Outputs
1
eTPU A Channel Output eTPU A Channel Input
13 24 24
12 25 25
11 26 26
10 27 27
Table 2-5. ETPUA[0:15]—DSPI C I/O Mapping (Continued)
DSPI C Serialized
Input
eTPU A Channel Output
eTPU A
CH16 IN
CH16 OUT
IN 7 IN 5
DSPI B
ETPUA[16]_
GPIO[130]
DSPI D
eTPU A
CH24 IN
CH24 OUT
IN 13 IN 15
DSPI B
ETPUA[24]_
GPIO[138]
DSPI D
OUT 13