TWR-MCF51JF-KIT Freescale Semiconductor, TWR-MCF51JF-KIT Datasheet - Page 15

• Manufacturer Part Number: TWR-MCF51JF-KIT
• Description: MCF51JF Tower Kit
• Manufacturer: Freescale Semiconductor
• Series: ColdFire®r
• Type: MCUr

Specifications of TWR-MCF51JF-KIT

• Rohs Compliant: YES
• Contents: Board
• Peak Reflow Compatible (260 C): Yes
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: MCF51JF128

2.13 External Bus Interface – FlexBus
The MCF51JF device features a multi-function external bus interface called the FlexBus interface
controller capable of interfacing to slave-only devices. The FlexBus interface is not used directly on the
TWR-MCF51JF. Instead, a subset of the FlexBus is connected to the Primary Connector so that the
external bus can access devices on Tower peripheral modules. Refer to Table 5 “TWR-MCF51JF Primary
Connector Pinout” and sheet 9 of the TWR-MCF51JF schematics for more details.
3 Jumper Table
There are several jumpers on the TWR-MCF51JF that provide configuration selection and signal
isolation. Refer to the following table for details. The default installed jumper settings are shown in
bold with asterisks.
TWRMCF51JFUM
Jumper
J13
J14
J17
J18
J24
J1
J2
J4
J5
J6
J7
J8
Infrared Transmitter and Green
LED Connection
Flexbus Address Latch Selection
Infrared Received Connection
Microphone Connection
USB Power Switch Enable Input
Connection
USB Power Switch Flag Output
Connection
Potentiometer Connection
Regulator Power Source
Selection
Board Power Source Selection
OSBDM Mode Selection
MCU Power Connection
EzPort Power Connection
Option
TWR-MCF51JF Tower Module User's Manual
Table 3. TWR-MCF51JF Jumper Table
Setting
*OFF*
*OFF*
*OFF*
*1-2*
*2-3*
*ON*
*ON*
*ON*
*ON*
*1-2*
*5-6*
*3-5*
*ON*
OFF
OFF
OFF
OFF
OFF
2-3
1-2
ON
ON
ON
Connect PTC5/CMT_IRO to IR Transmitter (D1)
Connect PTC5 to Green user-controllable LED
Flexbus address latch disabled
Flexbus address latch enabled
Connect PTC2/CMP0_IN3 to IR Receiver (Q1)
Disconnect PTC2/CMP0_IN3 from IR Receiver
Connect PTD4/ADC0_SE11 to microphone
Disconnect PTD4/ADC0_SE11 from microphone
Connect PTB7 to USB power switch enable input
Disconnect PTB7 from USB power switch enable input
Connect PTC0 to USB power switch flag output
Disconnect PTC0 from USB power switch flag output
Connect PTD5/ADC0_SE12 to potentiometer
Disconnect PTD5/ADC0_SE12 from potentiometer
Refer to Table 1
Refer to Table 2
OSBDM bootloader mode (OSBDM firmware reprogramming)
Debugger mode
Connect on-board power supply to MCU
Isolate MCU from power supply (allows for external supply or
power measurements)
Connect on-board 5V supply to EzPort header (supports
powering board from external EzPort probe)
Disconnect on-board 5V supply from EzPort header
Description
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