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RJ-45
Connector
Transceiver
1.1
MCF5271 Microprocessor
The microprocessor used on the EVB is the highly integrated Motorola MCF5271 32-bit
ColdFire variable-length RISC processor. The MCF5271 implements a ColdFire Version 2
core with a maximum core frequency of 100MHz and external bus speed of 50MHz.
Features of the MCF5271 include:
• V2 ColdFire core with enhanced multiply-accumulate unit (EMAC) providing 96
Dhrystone 2.1MIPS @ 100MHz
• 64 Kbytes of internal SRAM
• External bus speed of one half the CPU operating frequency (50MHz bus @
100Mhz core)
• 10/100 Mbps bus-mastering Ethernet controller
• 8 Kbytes of configurable instruction/data cache
Ethernet
ColdFire MCF5271
25 MHz
Osc.
(4) 60 pin Daughter Card
Expansion Connectors
Figure 1-1. M5271EVB block diagram
Chapter 1. M5271EVB Introduction
MCF5271 Microprocessor
26-pin Debug Header
RS-232
DB-9
Transceivers (3)
Connectors (3)
SDRAM
16 MBytes
Flash
2-4 MBytes
ASRAM
1 MByte
1-3
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