M5249C3 Freescale Semiconductor, M5249C3 Datasheet - Page 7

• 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

Chapter 1
M5249C3 Board
®
The M5249C3 is a versatile single board computer based on the MCF5249 ColdFire
processor. It may
be used as a powerful microprocessor-based controller in a variety of applications. It serves as a complete
microcomputer system for reference design, development/evaluation, training and educational use. The
user need only connect an RS-232 compatible terminal (or a personal computer with terminal emulation
software) and a power supply to have a fully functional system.
This board can be connected to external peripherals supplied by the user to expand memory and I/O
capabilities via the Expansion Bus connectors J4 & J5 (see schematic diagram). Buffers may be required
to compensate for bus loading if external peripherals are connected to the system.
1.1
General Hardware Description
The M5249C3 board provides SDRAM, Flash ROM, an Ethernet interface (10/100BaseT), and RS-232 in
addition to the built-in I/O functions of the MCF5249 device for programming and evaluating the
®
attributes of the microprocessor. The MCF5249 device is a member of the ColdFire
family of processors.
It is a 32-bit processor with a 24-bit address bus and 16 lines of data. The processor has eight 32-bit data
registers, eight 32-bit address registers, a 32-bit program counter, and a 16-bit status register.
The MCF5249 processor has a System Integration Module referred to as the SIM. This module
incorporates many of the functions needed for system design. These include programmable chip-select
logic, system protection logic, general purpose I/O and interrupt controller logic. The chip-select logic can
select up to four memory banks and peripherals in addition to two banks of DRAMs. The chip-select logic
also allows the insertion of a programmable number of wait-states to allow slower memory or memory
mapped peripherals to be used (refer to MCF5249 User's Manual for detailed information about the chip
selects). Two of the four chip selects are used to access devices in the system. One chip select (CS0) is
used to access the Flash ROM and the other (CS1) is used to access the Ethernet controller (U4 on the
schematics).The DRAM controller is used to control one SDRAM device providing 8MB of SDRAM
memory configured as 4MBx16 words. All other functions of the SIM are available to the user.
Figure 1-1
shows the M5249C3 block diagram.
M5249C3 User’s Manual, Rev. 1
Freescale Semiconductor
1-1