M5249C3 Freescale Semiconductor, M5249C3 Datasheet - Page 18

• Manufacturer Part Number: M5249C3
• Description: KIT EVAL FOR M5249 W/ETHERNET
• Manufacturer: Freescale Semiconductor
• Series: ColdFire®r
• Type: Microprocessorr

Specifications of M5249C3

• Contents: Module and Misc Hardware
• Processor To Be Evaluated: MCF5249
• Interface Type: RS-232, Ethernet
• For Use With/related Products: MCF5249
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Using the Monitor/Debug Firmware
An additional function called the "TRAP 15 handler" allows the user program to utilize various routines
within dBUG. The TRAP 15 handler is discussed at the end of this chapter.
The operational mode of dBUG is demonstrated in
waits for a command-line input from the user terminal. When a proper command is entered, the operation
continues in one of the two basic modes. If the command causes execution of the user program, the dBUG
firmware may or may not be re-entered, at the discretion of the user’s program. For the alternate case, the
command will be executed under control of the dBUG firmware, and after command completion, the
system returns to command entry mode.
During command execution, additional user input may be required depending on the command function.
For commands that accept an optional <width> to modify the memory access size, the valid values are:
When no <width> option is provided, the default width is .W, 16-bit.
The core ColdFire register set is maintained by dBUG. These are listed below:
All control registers on ColdFire are not readable by the supervisor-programming model, and thus not
accessible via dBUG. User code may change these registers, but caution must be exercised as changes may
render dBUG inoperable.
A reference to “SP” (stack pointer) actually refers to general purpose address register seven, “A7."
2.2
System power-up and initial operation are described in detail in
information is repeated here for convenience and to prevent possible damage.
2.2.1
Figur 2-1 shows the dUBG operational mode.
2-2
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B 8-bit (byte) access
W 16-bit (word) access
L 32-bit (long) access
A0-A7
D0-D7
PC
SR
Be sure the power supply is connected properly prior to power-up.
Make sure the terminal is connected to TERMINAL (P4) connector.
Turn power on to the board.
Operational Procedure
System Power-up
M5249C3 User’s Manual, Rev. 1
Figure
2-1. After the system initialization, the board
Chapter 1, “M5249C3 Board.”
Freescale Semiconductor
This