NXP Semiconductors MPC5644A Reference Manual page 86

Signal Description
Signal
DSPI_B_SOUT_LVDS-
DSPI_B_SOUT_LVDS+
DSPI_C_SCK_LVDS-
DSPI_C_SCK_LVDS+
DSPI_C_SOUT_LVDS-
DSPI_C_SOUT_LVDS+
PCS_B[0]
PCS_C[0]
PCS_D[0]
PCS_B[1:5]
PCS_C[1:5]
PCS_D[1:5]
SCK_B
SCK_C
SCK_D
SIN_B
SIN_C
SIN_D
SOUT_B
SOUT_C
SOUT_D
ADDR[10:31]
ALE
BDIP
CS[0:3]
DATA[0:31]
OE
86
Table 3-3. Signal details (continued)
Module or Function
DSPI LVDS pair used for DSPI_B TSB mode transmission
DSPI LVDS pair used for DSPI_C TSB mode transmission
DSPI LVDS pair used for DSPI_C TSB mode transmission
DSPI_B - DSPI_D Peripheral chip select when device is in master mode—slave
select when used in slave mode
DSPI_B - DSPI_D Peripheral chip select when device is in master mode—not used
in slave mode
DSPI_B - DSPI_D DSPI clock—output when device is in master mode; input when
in slave mode
DSPI_B - DSPI_D DSPI data in
DSPI_B - DSPI_D DSPI data out
EBI The ADDR[10:31] signals specify the physical address of the
bus transaction.
The 26 address lines correspond to bits 3-31 of the EBI's 32-bit
internal address bus.
ADDR[15:31] can be used as Address and Data signals when
configured appropriately for a multiplexed external bus. This
allows 32-bit data operations, or 16-bit data operations without
using DATA[0:15] signals.
EBI The Address Latch Enable (ALE) signal is used to demultiplex
the address from the data bus. It is asserted while the least
significant 16 bits of the address are present in the multiplexed
address/data bus.
EBI BDIP is asserted to indicate that the master is requesting
another data beat following the current one.
EBI CSx is asserted by the master to indicate that this transaction is
targeted for a particular memory bank on the Primary external
bus.
EBI The DATA[0:31] signals contain the data to be transferred for the
current transaction.
EBI OE is used to indicate when an external memory is permitted to
drive back read data. External memories must have their data
output buffers off when OE is negated. OE is only asserted for
chip-select accesses.
MPC5644A Microcontroller Reference Manual, Rev. 6
Description
Freescale Semiconductor