Motorola ColdFire MCF5281 - Manual (Page 248)

Signal Descriptions
14-8 Freescale Semiconductor
Table 14-2. MCF5282 Alphabetical Signal Index
Abbreviation Function I/O
A[23:0] Define the address of external byte, word, longword, and
16-byte burst accesses. I/O
AN[0:3]/AN[W:Z] Direct analog input ANn, or multiplexed input ANx. I
AN[52:53]/MA[0:1] Direct analog input ANn, or multiplexed output MAn. MAn
selects the output of the external multiplexer. I/O
AN[55:56]/
TRIG[1:2] Direct analog input ANn, or input TRIGn. TRIGn causes one of
the two queues to execute. I
Breakpoint/
Test mode select Signals a hardware breakpoint in debug mode (BKPT). Provides
information that determines JTAG test operation mode (TMS). I
BS[3:0] Define the byte lane of data on the data bus. I/O
CANRX Controller area network transmit data. I
CANTX Controller area network transmit data. O
CLKMOD[1:0] Clock mode select I
CLKOUT Reflects the system clock. O
CS[6:0] Programmed for a base address location and for masking
addresses, port size and burst capability indication, wait state
generation, and internal/external termination. O
D[31:0] Data bus. Provide the general purpose data path between the
MCU and all other devices. I/O
DDATA[3:0] Display captured processor addresses, data, and breakpoint
status. O
DSO/TDO Provides single-bit communication for debug module responses
(DSO). Provides serial data port for outputting JTAG logic data
(TDO). O
DSI/TDI Development serial clock for the serial interface to debug
module (DSCLK). Asynchronously resets the internal JTAG
controller to the test logic reset state (TRST). I
DSCLK/TRST Provides single-bit communication for debug module commands
(DSI). Provides serial data port for loading JTAG boundary scan,
bypass, and instruction registers (TDI). I
DRAMW Asserted to signify that a DRAM write cycle is underway.
Negated to indicate a read cycle. O
DTIN[3:0] Clock the event counter or provide a trigger to timer value
capture logic. I/O
DTOUT[3:0] Pulse or toggle on timer events. I/O
ECOL Asserted to indicate a collision.
Note: Not available on MCF5214 and MCF5216 I
ECRS Asserted to indicate that the transmit or receive medium is not
idle.
Note: Not available on MCF5214 and MCF5216 I
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3