M52210DEMO Freescale Semiconductor, M52210DEMO Datasheet - Page 12

• Manufacturer Part Number: M52210DEMO
• Description: BOARD DEV MCF5221X LOW COST
• Manufacturer: Freescale Semiconductor
• Series: ColdFire®r
• Type: MCUr

Specifications of M52210DEMO

• Contents: Module and Misc Hardware
• Processor To Be Evaluated: MCF52210
• Data Bus Width: 32 bit
• Interface Type: RS-232, Ethernet, USB
• Architecture: 32-bit (not ARM)
• Silicon Manufacturer: Freescale
• Core Architecture: Coldfire
• Core Sub-architecture: Coldfire V2
• Silicon Core Number: MCF52
• Silicon Family Name: MCF5221x
• Kit Contents: Board
• Rohs Compliant: Yes
• For Use With/related Products: MCF5221x
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 6: +5V_SEL Option
VX_EN
A 2-pin option header, VX_EN, connects input J1-1 directly to the +3.3V rail. J1-3 is connected
directly to the ground plane. This input requires a regulated +3.3V voltage source. This power
input is decoupled to minimize noise input but is not regulated. Also, no protection is applied
on this input and damage to the target board may result if over-driven. Do not attempt to
power the target board through this connector while also applying power through the USB
BDM or the PWR connector as damage to the board may result.
Do not exceed available current from the USB BDM or the on-board regulator when sourcing
power through connector J1 to external circuitry.
Power may be sourced to off-board circuitry through the J1 connector. The current limitation of
the USB bus or the on-board regulator must be considered when attempting to source power
to external circuitry. Excessive current drain may damage the target board, the host PC USB
hub, or the on-board regulator. The figure below details the VX_EN option header connec-
tions.
Figure 7. VX_EN Option Header
Do not apply power to connector J1 while also sourcing power from either the PWR connector
of the USB BDM circuit. Damage to the board may result.
USB OTG Power
The M52210DEMO may be powered from voltage input through the miniAB USB connector.
The DEMO board is also designed to provide power through the miniAB connector. This al-
lows the board to act as either Host or Peripheral.
Power output to the USB MAB connector is provided by a high-side switch located at U2. This
device provides the +5V output necessary for proper operation of the bus when the board is in
* indicates default shipping configuration
VX_EN
VX_EN
VBDM
VUSB
▪
VIN
▪
•
•
•
OFF
ON
•
•
•
Selects power input from miniAB USB connector
Selects power input from integrated USB BDM *
Selects power input from PWR connector
Enable power connection to connector J1
Disable power connection to connector J1
CAUTION
NOTE
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