Motorola ColdFire MCF5282 User Manual Page 26
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1-14 M5282EVB User’s Manual
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Communication Ports
1.4.3 10/100T Ethernet Port
The MCF5272 device performs the full set of IEEE 802.3/Ethernet CSMA/CD media access
control and channel interface functions. The MCF5282 Ethernet Controller requires an external
interface adaptor and transceiver function to complete the interface to the ethernet media. The
MCF5282 Ethernet module also features an integrated fast (100baseT) Ethernet media access
controller (MAC).
The Fast Ethernet controller (FEC) incorporates the following features:
• Full compliance with the IEEE 802.3 standard
• Support for three different physical interfaces:
— 100 Mbps 802.3 media independent interface (MII)
— 10 Mbps 802.3 MII
— 10 Mbps seven-wire interface
• Half-duplex 100 Mbps operation at system clock frequency 50 MHz
• 448 bytes total on-chip transmit and receive FIFO memory to support a range of bus
latencies. Note: the total FIFO size is 448 bytes. It is not intended to hold entire frames but
only to compensate for external bus latency. The FIFO can be partitioned on any 32-bit
boundary between receive and transmit, for example, 32 x 56 receive and 32 x 56 transmit.
• Retransmission from transmit FIFO following a collision, no processor bus used
• Automatic internal flushing of the receive FIFO for runts and collisions with no processor
bus use
For more details see the MCF5282 Users manual, this module’s signals are also brought to
expansion connector J3. The on board ROM MONITOR is programmed to allow a user to
download files from a network to memory in different formats. The current compiler formats
supported are S-Record, COFF, ELF or Image.
1.4.4 BDM/JTAG Port
The MCF5282 processor has a Background Debug Mode (BDM) port, which supports Real-Time
Trace Support and Real-Time Debug. The signals which are necessary for debug are available at
connector (J4). Figure 1-3., “J4- BDM Connector pin assignment” shows the (J4) Connector pin
assignment.
Table 1-15. Ethernet Hardware Configuration
Jumper
Function (See AMD-AM79C874VC users manual for
function description)
JP8 Auto Negotiate
JP9 Tech 0
JP10 Tech 1
JP11 Tech 2
- M5282EVB User's Manual 1
- Contents 5
- MOTOROLA Tables v 9
- ILLUSTRATIONS 11
- Chapter 1 13
- 1-2 M5282EVB User’s Manual 14
- 1.1 MCF5282 Microprocessor 15
- 1-4 M5282EVB User’s Manual 16
- MCF5282 Microprocessor 16
- Chapter 1. M5282EVB 1-5 17
- 1.2 System Memory 18
- 1.2.6 M5282EVB Memory Map 19
- 1.3 Support Logic 20
- Chapter 1. M5282EVB 1-9 21
- Support Logic 21
- 1.3.2 Clock Circuitry 22
- 1.3.3 Watchdog Timer 22
- 1.3.4 Exception Sources 23
- 1.3.5 TA Generation 23
- 1.4 Communication Ports 24
- 1.4.2 FlexCAN 2.0 B Port 25
- 1.4.3 10/100T Ethernet Port 26
- 1.4.4 BDM/JTAG Port 26
- 1.4.5 I 27
- 1.4.6 QSPI 28
- 1.5.1 Expansion Connectors 28
- Table 1-18. J6 29
- Table 1-19. J7 29
- Table 1-17. J5 29
- Table 1-20. J2 30
- 1.5.3 Reset Switch (S2) 31
- 1.5.4 User LEDs 32
- 1.5.5 Other LEDs 32
- 1.7 Software Development 33
- 1-22 M5282EVB User’s Manual 34
- Software Development 34
- 2.1 System Configuration 35
- 6 - 12 V 36
- Input Power 36
- RS-232 Terminal 36
- 2.2 Installation and Setup 37
- 2-4 M5282EVB User’s Manual 38
- Installation and Setup 38
- Figure 2-3. Jumper Locations 40
- 2.4 Using The BDM Port 41
- 2-8 M5282EVB User’s Manual 42
- Using The BDM Port 42
- Chapter 3 43
- 3.2 Operational Procedure 44
- 3.2.2 System Initialization 45
- 3.3 Command Line Usage 46
- 3.4 Commands 47
- 3-6 M5282EVB User’s Manual 48
- Commands 48
- ASM Assembler 49
- BC Block Compare 50
- BF Block Fill 51
- BM Block Move 52
- BR Breakpoints 53
- BS Block Search 54
- DC Data Conversion 55
- DI Disassemble 56
- DL Download Console 57
- DN Download Network 58
- GO Execute 59
- GT Execute To 60
- IRD Internal Register Display 61
- IRM Internal Register Modify 62
- HELP Help 63
- LR Loop Read 64
- LW Loop Write 65
- MD Memory Display 66
- MM Memory Modify 67
- MMAP Memory Map Display 68
- RD Register Display 69
- RM Register Modify 70
- SET Set Configurations 72
- SHOW Show Configurations 73
- STEP Step Over 74
- SYMBOL Symbol Name Management 75
- TRACE Trace Into 76
- UPDBUG Update dBUG 77
- UPUSER Update User Flash 78
- 3.5 TRAP #15 Functions 79
- 3.5.2 IN_CHAR 80
- 3.5.3 CHAR_PRESENT 80
- 3.5.4 EXIT_TO_dBUG 81
- 3-40 M5282EVB User’s Manual 82
- TRAP #15 Functions 82
- Appendix A 83
- Configuring dBUG for Network 83
- Downloads 83
- Appendix B 87
- Schematics 87
- Fire®Cold MCF5282 88
- Evaluation Board - M5282EVB 88
- CAN Bus Connector 89
- - 9 way D-type (Female) 89
- Cold Fire® 90
- SDRAM Upper 16-bit Word 99
- SDRAM Lower 16-bit Word 99
- RS232 Transceiver 100
- NOT POPULATED AT ASSEMBLY 100
- Appendix C 101
- Evaluation Board BOM 101
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