SPC5644AF0MVZ1 Datasheet, PDF (60/138 Pages) Freescale Semiconductor, Inc – MPC5644A Microcontroller Data Sheet

Signal
CAN_A_TX
CAN_B_TX
CAN_C_TX
CAN_A_RX
CAN_B_RX
CAN_C_RX
FR_A_RX
FR_B_RX
FR_A_TX_EN
FR_B_TX_EN
FR_A_TX
FR_B_TX
JCOMP
TCK
TDI
TDO
TMS
EVTI
EVTO
MCKO
MDO[0:11]¹
MSEO[0:1]¹
RDY
Table 5. Signal details (continued)
Module or Function
FlexCan_A -
FlexCAN_C
FlexCAN transmit
Description
FlexCAN_A -
FlexCAN_C
FlexCAN receive
FlexRay
FlexRay receive (Channels A, B)
FlexRay
FlexRay transmit enable (Channels A, B)
FlexRay
Flexray transmit (Channels A, B)
JTAG
JTAG
JTAG
JTAG
JTAG
Nexus
Enables the JTAG TAP controller.
Clock input for the on-chip test logic.
Serial test instruction and data input for the on-chip test logic.
Serial test data output for the on-chip test logic.
Controls test mode operations for the on-chip test logic.
EVTI is an input that is read on the negation of RESET to enable
or disable the Nexus Debug port. After reset, the EVTI pin is
used to initiate program synchronization messages or generate
a breakpoint.
Nexus
Nexus
Nexus
Nexus
Nexus
Output that provides timing to a development tool for a single
watchpoint or breakpoint occurrence.
MCKO is a free running clock output to the development tools
which is used for timing of the MDO and MSEO signals.
Trace message output to development tools. This pin also
indicates the status of the crystal oscillator clock following a
power-on reset, when MDO[0] is driven high until the crystal
oscillator clock achieves stability and is then negated.
Output pin—Indicates the start or end of the variable length
message on the MDO pins
Nexus Ready Output (RDY) is an output that indicates to the
development tools the data is ready to be read from or written to
the Nexus read/write access registers.
MPC5644A Microcontroller Data Sheet, Rev. 7
60
Freescale Semiconductor