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M5253EVBE Users Manual, Rev. 1
1-10
Freescale Semiconductor
1.7
System Power-up and Initial Operation
When all of the cables are connected to the board, power may be applied. The dBUG ROM Monitor
initializes the board and then displays a power-up message on the terminal, which includes the amount of
memory present on the board.
Hard Reset
DRAM Size: 8M
ColdFire MCF5253 on the M5253EVB
Firmware v4c.1b.1a (Built on Feb 1 2007 11:45:04)
Copyright 2006 Freescale Semiconductor, Inc.
Enter 'help' for help.
dBUG>
The board is now ready for operation under the control of the debugger as described in
Section 2.2,
“Operational Procedure
.” If you do not get the above response, perform the following checks:
1. Make sure that the power supply is properly configured for polarity, voltage level and current
capability (~1A) and is connected to the board.
2. Check that the terminal and board are set for the same character format and baud.
3. Press the RESET button to insure that the board has been initialized properly.
If you still are not receiving the proper response, your board may have been damaged. Contact Rapid PCB
for further instructions. For contact details, see the front of this manual.
1.8
M5253EVBE Jumper Setup
Jumper settings are as follows:
NOTE
*: Indicates the default setting.
**: Indicates mandatory setting for proper operation.
Table 1-2 Jumper Settings
Jumper Setting
Function
JP6
* 1-2
Audio DAC AK4366VT U4 audio format I2S
2-3
Audio DAC AK4366VT U4 audio format 24-bit MSB justified
JP7
1-2
Audio DAC AK4366VT U4 de-emphasis ON
* 2-3
Audio DAC AK4366VT U4 de-emphasis OFF
JP8
Not fitted
Enable external audio clock source
JP9
Not fitted
Enable XTRIM hardware feature
JP10
Not fitted
External 1.2V (core) supply current measurement
JP11,JP13
Not fitted
I2S0 5V pull-up (SDA0 and SCL0)
JP12
** Fitted
External 3.3V (pad) supply current measurement