M5249C3 Freescale Semiconductor, M5249C3 Datasheet - Page 9

• 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

There is one SDRAM (U7) device on the PCB. The system ships with 1x 4M x 16 of SDRAM totalling
8MBytes of volatile memory.
The internal cache of the MCF5249 is non-blocking. The instruction cache is 8 KBytes with a 16-byte line
size. The ROM Monitor currently does not utilize the cache, but programs downloaded with the ROM
Monitor can initialise and use the cache.
1.3
The MCF5249 processor has 2 built-in UARTs (UART0 and UART1) with independent baud rate
generators. The signals of both channels pass through external Driver/Receivers to make the channels
RS-232 compatible. An RS-232 serial cable with DB9 connectors is included with the board. The signals
of both channels are available on the 120 pin expansion connector (J5). UART0 channel is the
“TERMINAL” channel used by dBUG for communication with an external terminal/PC. The
“TERMINAL” baud rate defaults to 19200.
1.4
The MCF5249 offers 47-lines of general-purpose I/O of which 11 are dedicated inputs and 10 are
dedicated outputs. Eight of the GPIO lines are also available as edge sensitive interrupt inputs.
1.5
The MCF5249 has two built-in general purpose timers/counters and a software watchdog timer. All timers
are available to the user. The signals for each timer are available on the 120 pin expansion connector (J5).
1.6
The M5249C3 PCB has an Ethernet controller (SMSC LAN91C111 U4) operating at 10M bits/sec or
100Mbits/sec. The dBUG ROM monitor is programmed to allow a user to download files over a network
to memory in different formats. The compiler formats currently supported are S-Record, COFF, ELF, or
Image (raw binary). Refer to Appenix A for details on how to configure the board for network download.
1.7
The M5249C3 board requires the following items for minimum system configuration:
Refer to
Figure 1-2
Freescale Semiconductor
•
•
•
•
The M5249C3 board (provided).
Power supply, +7V to 14V DC with minimum of 1.0 Amp.
RS232C compatible terminal or a PC with terminal emulation software.
RS232 Communication cable (provided).
Section 2.2.2, “System Initialization,”
Serial Communication Channels
Parallel I/O Ports
Programmable Timer/Counter
Ethernet Controller
System Configuration
displays the minimum system configuration.
M5249C3 User’s Manual, Rev. 1
for initial system setup.
M5249C3 Board
1-3