Freescale M5213EVB User Guide

DOC-0367-010, REV. C

Freescale Semiconductor

© Freescale Semiconductor, Inc., 2004. All rights reserved.

Information in this document is provided solely to enable system and software
implementers to use Freescale Semiconductor products. There are no express or
implied copyright licenses granted hereunder to design or fabricate any integrated
circuits or integrated circuits based on the information in this document.
Freescale Semiconductor reserves the right to make changes without further notice to
any products herein. Freescale Semiconductor makes no warranty, representation or
guarantee regarding the suitability of its products for any particular purpose, nor does
Freescale Semiconductor assume any liability arising out of the application or use of
any product or circuit, and specifically disclaims any and all liability, including without
limitation consequential or incidental damages. “Typical” parameters which may be
provided in Freescale Semiconductor data sheets and/or specifications can and do
vary in different applications and actual performance may vary over time. All operating
parameters, including “Typicals” must be validated for each customer application by
customer’s technical experts. Freescale Semiconductor does not convey any license
under its patent rights nor the rights of others. Freescale Semiconductor products are
not designed, intended, or authorized for use as components in systems intended for
surgical implant into the body, or other applications intended to support or sustain life,
or for any other application in which the failure of the Freescale Semiconductor product
could create a situation where personal injury or death may occur. Should Buyer
purchase or use Freescale Semiconductor products for any such unintended or
unauthorized application, Buyer shall indemnify and hold Freescale Semiconductor
and its officers, employees, subsidiaries, affiliates, and distributors harmless against all
claims, costs, damages, and expenses, and reasonable attorney fees arising out of,
directly or indirectly, any claim of personal injury or death associated with such
unintended or unauthorized use, even if such claim alleges that Freescale
Semiconductor was negligent regarding the design or manufacture of the part.

Information in this document is provided solely to enable system and software
implementers to use Freescale Semiconductor products. There are no express or
implied copyright licenses granted hereunder to design or fabricate any integrated
circuits or integrated circuits based on the information in this document.
Freescale Semiconductor reserves the right to make changes without further notice to
any products herein. Freescale Semiconductor makes no warranty, representation or
guarantee regarding the suitability of its products for any particular purpose, nor does
Freescale Semiconductor assume any liability arising out of the application or use of
any product or circuit, and specifically disclaims any and all liability, including without
limitation consequential or incidental damages. “Typical” parameters which may be
provided in Freescale Semiconductor data sheets and/or specifications can and do
vary in different applications and actual performance may vary over time. All operating
parameters, including “Typicals” must be validated for each customer application by
customer’s technical experts. Freescale Semiconductor does not convey any license
under its patent rights nor the rights of others. Freescale Semiconductor pro ducts are
not designed, intended, or authorized for use as components in systems intended for
surgical implant into the body, or other applications intended to support or sustain life,
or for any other application in which the failure of the Freescale Semiconductor product
could create a situation where personal injury or death may occur. Should Buyer
purchase or use Freescale Semiconductor products for any such unintended or
unauthorized application, Buyer shall indemnify and hold Freescale Semiconductor
and its officers, employees, subsidiaries, affiliates, and distributors harmless against all
claims, costs, damages, and expenses, and reasonable attorney fees arising out of,
directly or indirectly, any claim of personal injury or death associated with such
unintended or unauthorized use, even if such claim alleges that Freescale
Semiconductor was negligent regarding the design or manufacture of the part.

Reconfigured with permission of Axiom Manufacturing

M5213EVB

Development Board for Freescale MCF5213 MCU

Hardware User Manual

M5213EVB USER MANUAL 08/08/05

Freescale Semiconductor, Inc.

CONTENTS

CAUTIONARY NOTES .......................................................................................................................... 3

TERMINOLOGY..................................................................................................................................... 3

FEATURES............................................................................................................................................... 4

GETTING STARTED..............................................................................................................................5

S

OFTWARE DEVELOPMENT....................................................................................................................... 5

R

EFERENCE DOCUMENTATION ................................................................................................................. 5

M5213EVB S

TARTUP .............................................................................................................................. 6

M5213EVB HARDWARE CONFIGURATION AND OPTIONS....................................................... 6

MEMORY............................................................................................................................................... 6

POWER SUPPLY ................................................................................................................................... 7

Power Jack........................................................................................................................................... 7

TB1 Power connection......................................................................................................................... 7

ON_OFF Switch................................................................................................................................... 7

FUSE – F1............................................................................................................................................ 7

3.3V_EN Option................................................................................................................................... 8

3.3V Indicator ...................................................................................................................................... 8

VDD and VRx Enable Options............................................................................................................. 8

VX_EN Option......................................................................................................................................9

RESET..................................................................................................................................................... 9

RESET Switch....................................................................................................................................... 9

RESET Indicator ..................................................................................................................................9

ABORT S
SW1
LED[4:1] U

WITCH...................................................................................................................................... 9

AND SW2 SWITCHES....................................................................................................................... 9

SER INDICATORS.................................................................................................................... 9

LED_EN option.................................................................................................................................. 10

SYSTEM CLOCK................................................................................................................................. 10

CLOCK Option Chart ........................................................................................................................ 10

UART0_TERMINAL AND UART1 PORTS........................................................................................... 10

UART0_EN and UART1_EN Options................................................................................................ 11

UART2_CAN P

ORT .............................................................................................................................. 11

COM_SEL Option.............................................................................................................................. 11

UART2_EN option.............................................................................................................................. 12

CAN Operation................................................................................................................................... 12

CAN_EN option..................................................................................................................................13

I2C PULL-UP ENABLE................................................................................................................... 13

JP1 –

MC13192 ZIGBEE™ TRANSCEIVER ................................................................................................ 13

ZIGBEE_EN Option........................................................................................................................... 13

TX Power............................................................................................................................................14

M5213EVB I/O PORTS .........................................................................................................................14

BDM_PORT.......................................................................................................................................... 14

BDM_EN Option................................................................................................................................ 14

JP2 Option.......................................................................................................................................... 15

BDM Port Connector......................................................................................................................... 15

MCU_PORT.......................................................................................................................................... 16

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TROUBLESHOOTING............................................................................................................................ 17

DBUG MONITOR OPERATION.........................................................................................................18

DBUG COMMUNICATION: ...................................................................................................................... 18

DBUG SYSTEM INITIALIZATION............................................................................................................. 18

Interrupt Service Support................................................................................................................... 18

DBUG MEMORY MAP ............................................................................................................................ 18

DBUG COMMANDS ................................................................................................................................19

dBUG Command Table...................................................................................................................... 19

APPENDIX 1: DBUG COMMAND SET............................................................................................. 21

ASM - ASSEMBLER............................................................................................................................... 21

BC

- BLOCK COMPARE........................................................................................................................... 21

BF - B
BM - B
BR - B
BS - B
DC - D
DI - D
DL - D
DLDBUG – D
FL – F
GO – E
GT - E
IRD - I
IRM - I
HELP - H
LR - L
LW - L
MD - M
MM - M
MMAP

LOCK FILL.................................................................................................................................... 22

LOCK MOVE ............................................................................................................................... 23

REAKPOINTS ................................................................................................................................23

LOCK SEARCH.............................................................................................................................. 24

ATA CONVERSION ....................................................................................................................... 25

ISASSEMBLE ................................................................................................................................. 25

OWNLOAD CONSOLE ................................................................................................................... 26

OWNLOAD DBUG (UPDATE)............................................................................................ 26

LASH LOAD OR ERASE ................................................................................................................. 27

XECUTE USER CODE .................................................................................................................... 27

XECUTE TO ADDRESS .................................................................................................................. 28

NTERNAL REGISTER DISPLAY...................................................................................................... 28

NTERNAL REGISTER MODIFY...................................................................................................... 28

ELP ......................................................................................................................................... 29

OOP READ.................................................................................................................................... 29

OOP WRITE ................................................................................................................................. 29

EMORY DISPLAY........................................................................................................................ 30

EMORY MODIFY........................................................................................................................30

- MEMORY MAP DISPLAY.......................................................................................................... 31

RD - REGISTER DISPLAY........................................................................................................................ 31

RM - R
RESET - R
SET - S
SHOW - S
STEP - S
SYMBOL - S
TRACE - T
VERSION - D
TRAP #15 F

EGISTER MODIFY........................................................................................................................ 32

ESET THE BOARD AND DBUG............................................................................................... 32

ET CONFIGURATIONS.................................................................................................................. 33

HOW CONFIGURATIONS ......................................................................................................... 33

TEP OVER................................................................................................................................. 34

YMBOL NAME MANAGEMENT .......................................................................................... 34

RACE INTO ........................................................................................................................... 35

ISPLAY DBUG VERSION.................................................................................................. 35

UNCTIONS........................................................................................................................... 36

OUT_CHAR ....................................................................................................................................... 36

IN_CHAR ........................................................................................................................................... 36

CHAR_PRESENT............................................................................................................................... 37

EXIT_TO_dBUG................................................................................................................................ 37

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Cautionary Notes

1) Electrostatic Discharge (ESD) prevention measures should be applied whenever handling
this product. ESD damage is not a warranty repair item.

2) Axiom Manufacturing reserves the right to make changes without further notice to any
products to improve reliability, function or design. Axiom Manufacturing does not assume
any liability arising out of the application or use of any product or circuit described herein;
neither does it convey any license under patent rights or the rights of others.

3) EMC Information on the M5213EVB board:

a) This device complies with Part 15 of the FCC Rules. Operation is subject to the following

two conditions:

1) This device may not cause harmful interference, and

2) This device must accept any interference received, including interference that may
cause undesired operation.

TX FCC ID# TFY0605AXM0367

b) Changes or modifications to this unit not expressly approved by Axiom Manufacturing,

could void the user’s authority to operate this equipment.

c) This product as shipped from the factory with associated power supplies and cables, has

been tested and meets with requirements of CE IT Equipment CLASS B product.

d) This product is designed and intended for use as a development platform for hardware or

software in an educational / professional laboratory.

e) In a domestic environment this product may cause radio interference in which case the

user may be required to take adequate prevention measures.

f) RF Exposure – This device exceeds the FCC requirements for RF exposure when the

antenna used for this transmitter has a separation distance of at least 20cm from all
persons and must not be co-located or operating in conjunction with any other antenna or
transmitter.

Terminology

This development board applies option selection jumpers. Terminology for application of the
option jumpers is as follows:

Jumper on, in, or installed = jumper is a plastic shunt that fits across 2 pins and the
shunt is installed so that the 2 pins are connected with the shunt.

Jumper off, out, or idle = jumper or shunt is installed so that only 1 pin holds the shunt,
no 2 pins are connected, or jumper is removed. It is recommended that the jumpers be
placed idle by installing on 1 pin so they will not be lost.

Signal names in this document that are followed by an asterisk (*) denote an active-low signal.

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FEATURES

M5213EVB is a low cost development system for the Freescale MCF5213 ColdFire®
microcontroller. Application development is quick and easy with the included DB9 serial cable
and dBUG firmware monitor. The BDM port is compatible with standard ColdFire BDM / JTAG
interface cables and hosting software, allowing easy application debugging and development
with a variety of hardware and software tools.

Features:

♦ MCF5213 CPU, 100 pin LQFP

* 256K Byte Flash (on-chip)
* 32K Byte SRAM (on-chip)
* DMA Controller w/ four 32-bit Timers
* Interrupt Controller
* 8 Channel 12-bit A/D
* QSPI, IIC, and CAN Serial Ports
* 3 UART Serial Ports with DMA capability
* Edge / Interrupt Port
* 8 PWM timers
* 4 16-bit GPT Timers
* BDM / JTAG Port
* Internal 8MHz Oscillator
* 3.3V operation

♦ 8MHz reference crystal
♦ MCU port, 60 pin I/O port
♦ BDM / JTAG Port, 26-pin development port
♦ UART0 / Terminal Port w/ RS232 DB9-S Connector
♦ UART1 Port w/ RS232 DB9-S Connector
♦ UART2 / CAN port w/ RS232 and 1Mbaud CAN

transceiver

♦ RESET switch and indicator
♦ ABORT (IRQ7) switch
♦ 4 User Indicators (LEDs)
♦ 2 User Push Switches
♦ 2.4GHz Zigbee™ capable RF Transceiver
♦ Regulated +3.3V power supply w/ indicator
♦ Supplied with DB9 Serial Cable, Wall Adapter Power supply, and P&E

BDM interface cable.

M5213EVB

Specifications:

Board Size 3.5” x 5.5”
Power Input: +5 - +25VDC, 9VDC typical
Current Consumption: 100ma typical @ 9VDC input

The M5213EVB is provided, operating the Freescale dBUG monitor firmware. The monitor
allows serial interface to a PC host for file loading and terminal command line operations. The
kit is plug in and play out of the box with a wall adapter power supply. Additional hardware and
software development tools are available, but not required.

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GETTING STARTED

The M5213EVB single board computer is a fully assembled, fully functional development board
for the Freescale MCF5213 microcontroller. It is provided with a wall plug power supply, P&E
BDM interface cable, and a serial cable. Provided support software for this development board
is for Windows 95/98/NT/2000/XP operating systems.

Development board users should also be familiar with the hardware and software operation of
the target MCF5213 device. Refer to the microcontroller reference manual, MCF5213RM, for
details. The purpose of the development board is to assist the user in quickly developing an
application with a known working environment, to provide an evaluation platform, or as a
control module for an applied system. Users should be familiar with memory mapping,
memory types, and embedded software design for the quickest successful application
development.

Software Development

Application development maybe performed by applying the dBUG firmware monitor, or by
applying a compatible ColdFire BDM / JTAG cable with supporting host software. The monitor
provides an effective and low cost command line debug method.

Software development is best performed with a development tool connected to the BDM port.
This provides real-time access to all hardware, peripherals and memory on the board.
Development tool software also provides high-level (C/C++) source code debug environment.

The target development environment and procedure for best success is to place software to be
tested into RAM memory. Execute software to be tested under dBUG monitor or development
tool control. After the software is tested and operational in RAM, it can be ported and
programmed into Flash memory. However, note that programming a bootable application into
the internal Flash will overwrite the dBUG monitor. The monitor can be recovered by using a
BDM Flash programming tool along with the dBUG binaries provided on the MCF5213 website
(http://www.freescale.com/coldfire).

Reference Documentation

The following documents should be referenced when developing with the M5213EVB. These
documents are available on the MCF5213 and M5213EVB web pages
(http://www.freescale.com/coldfire).

M5213EVBUM – This user manual.
MCF5213RM – MCF5213 Device Reference Manual
CFPRM – ColdFire Programmers Reference Manual with instruction set
M5213EVB_SCH_C – M5213EVB board schematics

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M5213EVB Startup

Follow these steps to connect and power on the board for the default dBUG monitor operation.

1) Carefully unpack the M5213EVB and observe ESD preventive measures while handling the
M5213EVB development board.

2) Configure a virtual terminal program (such as HyperTerminal or Tera Term) for a direct
connection to the PC COM port to be applied for serial communication with the M5213EVB.
Set the baud rate to 19.2K baud, 8 data bits, 1 stop bit, and no parity. Software XON /
XOFF flow control should be enabled for Flash memory support operations. Use the
AxIDE ‘√’ tool bar button to configure the COM port on the PC.

3) Connect the M5213EVB board UART0 / TERMINAL serial port connector to the host PC
COM port with the provided 9 pin serial cable.

4) Apply power to the development board by installing the wall plug power supply between a
wall outlet and the PWR Jack on the board. Set the ON / OFF switch to the ON position.
The board voltage indicators should turn on at this time.

5) Observe the terminal window display for the dBUG monitor prompt. The prompt should be
similar to the following:

External Reset

ColdFire MCF5213 on the M5213EVB
Firmware v4a.1b.1b (Built on May 13 2005 08:04:26)
Copyright 2005 Freescale Semiconductor, Inc.

Enter 'help' for help.

dBUG>

6) The board is ready to use now. See the dBUG monitor manual section for additional
monitor information. If BDM / JTAG development port interfaced tools are to be applied,
see the BDM PORT section of this manual for more details on installation.

M5213EVB Hardware Configuration and Options

The M5213EVB board provides a basic development or evaluation platform for the MCF5213
microcontroller. Following are descriptions of the main components and options provided on
the board.

MEMORY

The EVB memory is the internal MCF5213 device SRAM and Flash memory. The MCF5213
provides 32K bytes of SRAM and 256K bytes of Flash memory internally. The dBUG monitor
occupies the lower 80K bytes of the MCF5213 Flash memory and lower 8K bytes of the
SRAM. Refer to the dBUG memory map for default memory locations.

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POWER SUPPLY

Unregulated DC input power is applied by external connection to the Power Jack or TB1
terminal block. The ON _OFF switch controls the input supply. The EVB 3.3VDC regulator is
protected from reverse voltage by diode D7 and current limited by fuse F1.

Power Jack

The Power Jack provides the default power input to the board. The jack accepts a standard

2.0 ~ 2.1mm center barrel plug connector (positive voltage center) to provide the +VIN supply

of +5 to +25 VDC (+9VDC typical).

+Volts, 2mm center

TB1 Power connection

TB1 terminal block provides access to the +VIN and GND (power ground) supplies. The +VIN
supply should be limited to the range of +5 to +25 VDC (+9VDC typical).

+VIN - GND

TB1

ON_OFF Switch

The ON_OFF switch provides power On and Off control for the input power from the PWR
Jack or TB1. Switch ON position is towards the PWR jack and OFF position is towards the
TB1 connector.

ON

ON / OFF

OFF

FUSE – F1

Fuse F1 provides over current protection from PWR Jack or TB1 input to the EVB board. The
fuse will open if current over 500mA is sustained or reaches 1 Amp. To reset the fuse, turn the

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ON/OFF switch off or remove power for 10 minutes. Check for the cause of the over current
condition before applying power again.

3.3V_EN Option

Default enabled by circuit trace across the option jumper pin pads, this option allows disabling
the on board regulated 3.3VDC supply to the EVB board. Cut or idle this option to reduce
current consumption when an external 3.3VDC regulated input voltage is applied from the EVB
MCU PORT connector. See the VX_EN option also for more details on applying external
+3.3VDC on the MCU PORT.

To enable use of this option, cut the circuit trace between the mounting hole vias and install
1x2, 0.1”ctr, pin-header. A shunt must then be installed to enable this option.

3.3V Indicator

The 3.3V indicator will be ON if voltage is applied to EVB +3.3VDC main supply circuit. If EVB
is powered from the PWR jack or TB1 input, ON_OFF switch is ON, and +3.3V_EN is closed,
this indicator should be ON. If not, remove power or turn EVB Off and verify connections. If
the Fuse is suspect, see the F1 fuse section for reset procedure.

With the 3.3V_EN option open, the indicator will be ON if external 3.3VDC is applied via the
MCU Port. The VX_EN option jumper should also be installed.

VDD and VRx Enable Options

The EVB board provides many options to isolate power supplies to the different MCF5213
modules and core. All VDD and VRx options are installed by default. Do not operate the EVB
without the proper power supplied to all of the MCF5213 power supply pins. The following
table provides the VDD and VRx option information:

VDD and VRx Option Table
Option Name Supply Connection MCU Port Connection

VDD_EN +3.3V to MCF5213 VDD pins
VDD_PLL +3.3V to MCF5213 VDDPLL pin
VSTDBY + 3.3V to MCF5213 VSTDBY pin, also MCU Port

connection

VDDA +3.3V to MCF5213 VDDA analog supply pin,

also MCU Port connection.

VRH VDDA supply to MCF5213 VRH analog

reference pin, also MCU Port

VRL VSSA (ground) to MCF5213 VRL analog

reference pin

VX_EN MCU Port pin 1 connection to +3.3V supply,

input or output. For input, see +3.3V_EN option
also.

Pin 60
Pin 55
Pin 57
VRL Pin 58, VSSA pin

56
Pin 1

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VX_EN Option

The VX_EN option is provided to support external 3.3V input from the MCU PORT pin 1 in
conjunction with Freescale educational accessories. The VX_EN option installed provides
external 3.3V input (or output if wanted) on MCU Port pin1.

See the 3.3V_EN Option section above to disable the on-board regulator.

RESET

External reset is provided by the RESET switch, LV1 low voltage detector, or user applied
connection to the RSTI* signal on the MCU PORT pin 6. If the main 3.3V supply is below
operating level, the LV1 voltage detector will cause the MCF5213 to stay in the RESET
condition. Both the RESET switch and LV1 provide a 150ms delay after release for the system
to stabilize.

Application of RESET will cause the dBUG monitor or user application to initialize the
MCF5213. The previous operating state of the MCF5213 will be lost.

RESET Switch

RESET switch provides for manual application of the MCF5213 RSTI* signal. Reset switch
operation is provided a 150ms delay after release by LV1.

RESET Indicator

RESET indicator will be ON for the duration of a valid RSTO* signal. This operation indicates
the MCF5213 is in the Reset state.

ABORT Switch

The ABORT switch provides for manual application of the IRQ7 interrupt signal. This
operation will allow the dBUG monitor to stop execution of a user program and maintain the
CPU operating state for user examination.

SW1 and SW2 Switches

User switches 1 and 2 are available for application as needed. Both switches provide an
active low signal when pressed. SW1 applies the MCF5213 IRQ4 signal and SW2 applies the
MCF5213 IRQ5 signal.

LED[4:1] User Indicators

Four user indicators are provided for application on the MCF5213 DTIN[3:0] signals
(configurable as GPIO). Indicators are buffered so they do not load the MCF5213 I/O port.

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Indicator Table

INDICATOR COLOR OPERATION DEFAULT

CONDITION

LED1 Green MCF5213 DTIN0 status, high = ON ON
LED2 Green MCF5213 DTIN1 status, high = ON ON
LED3 Green MCF5213 DTIN2 status, high = ON ON
LED4 Green MCF5213 DTIN3 status, high = ON ON

LED_EN option

The user LED indicators LED[4:1] must be enabled by the LED_EN option installed.

SYSTEM CLOCK

The EVB provides a 8MHz crystal oscillator reference input in Pierce Mode configuration. The
MCF5213 also provides an internal 8MHz relaxation oscillator. The SMA connector position
and socket X1 position are for factory testing purposes only and should not be applied.

NOTE: Applying alternate clock inputs without express consent from Axiom Manufacturing
may void the user’s authority to operate this equipment.

CLOCK Option Chart

Clock Type Clock Mode CLK_SEL Option Setting

SourcePLLCLK0CLK1 1 23456

Y1 (8MHz) ON Out / Idle Out / Idle In In Out NC NC NC
Y1 (8MHz) OFF Out / Idle In In In Out NC NC NC

INT OSC ON In Out / Idle Out Out In NC NC NC
INT OSC OFF In In Out Out In NC NC NC

Notes:

1) INT OSC is the internal MCF5213 8MHz relaxation oscillator.

2) CLK_SEL option has 2 option jumpers provided. For INT OSC selection idle one

jumper on one pin so it will not be lost.

3) CLK_SEL option positions 3-6 are for factory use only.

UART0_TERMINAL and UART1 Ports

The UART0_TERMINAL port provides the primary interface to the dBUG monitor with a default
baud rate of 19.2K baud, 8 data bits, 1 stop bit, and no parity. Both the UART0 and UART1
ports apply a standard 9-pin serial connector with RS232 type interface to the MCF5213
UART0 or UART1 serial ports. Both ports apply a UARTx_EN option jumper block to enable
the MCF5213 UART signals to operate the RS232 ports. A straight through DB9 Male /
Female type serial cable can be applied to connect the ports to a standard PC COM port.
Following is the DB9S connection reference.

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UART0_TERMINAL and UART1 Ports

DB9 socket connector with RS232 signal levels.

1,4,6 connected for status null to host

TXD

RXD

GND

1

1
2 6
3 7

4

4 8
5 9

X
6
7 CTS
8 RTS
9

UART0_EN and UART1_EN Options

OPTION

Name

TX UTXD0 output UTXD1 output

RX URXD0 input URXD1 input
RTS URTS0* output URTS1* output
CTS UCTS0* input UCTS1* input

UART0_EN

MCF5213 signal

applied

UART1_EN

MCF5213 signal

applied

UART2_CAN Port

The UART2_CAN port provides the UART2 RS232 serial port or the CAN network port.
Selection of the port interface type is provided by the COM_SEL option jumper block.
Additional options provide MCF5213 signal connection to the selected interface transceiver for
the port. The UART2_EN option block enables the MCF5213 UART2 signals for RS232
operation and the CAN_EN option block enables the MCF5213 CAN signals for CAN network
operation. The CAN port also has a network termination option, CAN_TERM and biasing
components RCAN1 and RCAN2 (not populated).

A straight through DB9 Male / Female type serial cable can be applied to connect the UART2
port in RS232 COM mode to a standard PC COM port. CAN mode connection will require the
cabling to be compatible to the network applied. Following is the DB9S connection reference:

UART2_CAN Port

CAN RS232

4, 6 tie 4, 6 tie

CAN_LO TXD

GND RXD

1, 6 tie 1, 6 tie

GND GND

COM_SEL Option

Selects UART2_CAN Port connector type of interface between UART2 RS232 operation and
CAN operation. All 3 positions should be set for the same selection, UART or CAN.

DB9 RS232 CAN

1
2 6
3 7
4 8
5 9

1, 4 tie 1, 4 tie
7 CTS CAN_HI
8 RTS Do not connect
X

CAN Signal

11

DB9 socket connector.

1,4,6 connected for RS232
status null to host