MPC5553/MPC5554 Microcontroller Reference Manual, Rev. 5
Freescale Semiconductor 2-45
2.3.6 FlexCAN Signals
2.3.6.1 FlexCAN A Transmit / GPIO
CNTXA_GPIO[83]
CNTXA_GPIO[83] has a primary signal function of FlexCAN A transmit for the FlexCAN A module.
This pin can also be used as a GPIO signal.
2.3.6.2 FlexCAN A Receive / GPIO
CNRXA_GPIO[84]
CNRXA_GPIO[84] has a primary signal function of FlexCAN A receive for the FlexCAN A module. This
pin can also be used as a GPIO signal.
2.3.6.3 FlexCAN B Transmit / DSPI C Chip Select / GPIO
CNTXB_PCSC[3]_GPIO[85]
CNTXB_PCSC[3]_GPIO[85] has a primary signal function for the FlexCAN B transmit and is only
available on the MPC5554. Because the MPC5553 has FlexCAN A and C only, the FlexCAN B signal
function CNTXB is not available on the MPC5553. The alternate signal function is a peripheral chip select
output for the DSPI C module. This pin can also be used as a GPIO signal.
2.3.6.4 FlexCAN B Receive / DSPI C Chip Select / GPIO
CNRXB_PCSC[4]_GPIO[86]
CNRXB_PCSC[4]_GPIO[86] has a primary signal function of FlexCAN B receive for the FlexCAN B
module and is only available on the MPC5554. Because the MPC5553 has FlexCAN A and C only, the
FlexCAN B signal function CNRXB is not available on the MPC5553. The alternate signal function is a
peripheral chip select output for the DSPI C module. This pin can also be used as a GPIO signal.
2.3.6.5 FlexCAN C Transmit / DSPI D Chip Select / GPIO
CNTXC_PCSD[3]_GPIO[87]
CNTXC_PCSD[3]_GPIO[87] has a primary signal function of FlexCAN C transmit for the FlexCAN C
module. The alternate function is a peripheral chip select for the DSPI D module. This pin can also be used
as a GPIO signal.
2.3.6.6 FlexCAN C Receive / DSPI D Chip Select / GPIO
CNRXC_PCSD[4]_GPIO[88]
CNRXC_PCSD[4]_GPIO[88] has a primary signal function of FlexCAN C receive for the FlexCAN C
module. The alternate function is a peripheral chip select for the DSPI D module. This pin can also be used
as a GPIO signal.
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