MPC5553/MPC5554 Microcontroller Reference Manual, Rev. 5
Freescale Semiconductor 2-53
function is PCSD[1:4] used as a peripheral select for the DSPI D module. These pins can be used as GPIO
signals.
2.3.10.6 eTPU A Channel / External Interrupt Request / GPIO
ETPUA[20:27]_IRQ[8:15]_GPIO[134:141]
ETPUA[20:27]_IRQ[8:15]_GPIO[134:141] are input/output channel pins for the eTPU A module muxed
with interrupt request pins. The primary functions are for the ETPU A module and the alternate functions
are external interrupt requests (IRQs). These pins can be used as GPIO signals.
2.3.10.7 eTPU A Channel / DSPI C Chip Select / GPIO
ETPUA[28:31]_PCSC[1:4]_GPIO[142:145]
ETPUA[28:31]_PCSC[1:4]_GPIO[142:145] has a primary signal functions of input/output channels for
the eTPU A module. The alternate functions are PCSC[1:4] for the DSPI C module. These pins can be used
as GPIO signals.
2.3.10.8 MPC5554: eTPU B TCR Clock / External Interrupt Request / GPIO
TCRCLKB_IRQ
[6]_GPIO[146]
TCRCLKB_IRQ[6]_GPIO[146] is the TCR B clock input for the eTPU module. The alternate function is
an external interrupt request input for the SIU module. This pin can be used by the MPC5554 as a GPIO
signal. The TCRCLKB primary signal function is used by the eTPU B module that is not available on the
MPC5553.
2.3.10.9 MPC5554: eTPU B Channel / eTPU B Channel (Output Only) / GPIO
ETPUB[0:15]_ETPUB[16:31]_GPIO[147:162]
ETPUB[0:15]_ETPUB[16:31]_GPIO[147:162] are 16 input/output channel pins for the eTPU B module.
The alternate functions are the output channels for the eTPU B module; meaning that the pins function as
outputs only when ETPUB[16:31] is configured. These pins can be used by the MPC5554 as GPIO signals.
ETPUB signal functions are not available on the MPC5553.
2.3.10.10 MPC5554: eTPU B Channel / DSPI A Chip Select / GPIO
ETPUB[16:19]_PCSA[1:4]_GPIO[163:166]
ETPUB[16:19]_PCSA[1:4]_GPIO[163:166] are input/output channel pins for the eTPU B module and
DSPI A functionality is the alternate. These pins can be used by the MPC5554 as GPIO signals. ETPUB
signal functions are not available on the MPC5553.
2.3.10.11 MPC5554: eTPU B Channel / GPIO
ETPUB[20:31]_GPIO[167:178]
ETPUB[20:31]_GPIO[167:178] are input/output channel pins for the eTPU B module. These pins can be
used by the MPC5554 as GPIO signals. ETPUB signal functions are not available on the MPC5553.
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