EVB51JM128 Freescale Semiconductor, EVB51JM128 Datasheet - Page 12

• Manufacturer Part Number: EVB51JM128
• Description: BOARD EVAL FOR MCF51JM128 MCU
• Manufacturer: Freescale Semiconductor
• Series: ColdFire®r
• Type: MCUr

Specifications of EVB51JM128

• Contents: Evaluation Board
• Silicon Manufacturer: Freescale
• Core Architecture: Coldfire
• Core Sub-architecture: Coldfire V1
• Silicon Core Number: MCF51J
• Silicon Family Name: Flexis - MCF51JM
• Rohs Compliant: Yes
• For Use With/related Products: MCF51JM128
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

E V B 5 1 J M 1 2 8
Reset LED
The RESET indicator will be ON for the duration of a valid RESET* signal. The RESET * sig-
nal is driven active while the MCU is in the RESET state.
Low Voltage Detect
The MCF51JM128 applies a Low Voltage Detect (LVD) module to detect under-voltage condi-
tions.
MCF51JM128 Reference Manual for further details.
MEMORY
No external memory is applied to the EVB51JM128 board. Memory for application develop-
ment is internal to the MCF51JM128 MCU. This memory includes 128K bytes of Flash and
16K bytes of SRAM memory. Refer to the MCF51JM128RM for details on memory type and
location.
TIMING
The EVB51JM128 accepts timing input from several sources. A 12 MHz crystal is provided to
support application development. The target device also provides an internal timing source
with 9-bit trimming. Locations for a vertical SMA connector and a 14-pos DIP socket are pro-
vided but not installed in default configurations.
Table 1: OSC_SEL Option Header
An FLL and PLL to allow synthesizing a range of frequencies. Refer to the target MCU Refer-
ence Manual for details on using the FLL or PLL.
The LVD may be configured to generate a RESET or an interrupt.
CAUTION:
XTAL
XTAL
XTAL
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U S E R
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changes during application execution.
Communications with the target may be lost if clock frequency or baud rate
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OSC
OSC
OSC
G U I D E
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Selects Timing input from 12 MHz XTAL at Y1
Selects Timing input from SMA socket at J6 or DIP socket at X1. Neither
the SMA connector nor the DIP socket are installed on production boards.
Selects PORTG functionality
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F E B R U A R Y
Refer to the
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