MC56F8323EVM Freescale Semiconductor, MC56F8323EVM Datasheet - Page 30

• Manufacturer Part Number: MC56F8323EVM
• Description: KIT EVALUATION FOR MC56F8323
• Manufacturer: Freescale Semiconductor
• Type: DSPr

Specifications of MC56F8323EVM

• Contents: Module and Misc Hardware
• Processor To Be Evaluated: MC56F8322 and MC56F8323
• Data Bus Width: 16 bit
• Interface Type: RS-232
• For Use With/related Products: MC56F8322, MC56F8323
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

2.6 Power Supply
The main power input to the 56F8323EVM, +12V DC at 1.2A, is through a 2.1mm coax power
jack. This input power is rectified to provide a DC supply input. This allows a user the option to
use a +12V AC power supply. A 1.2Amp power supply is provided with the 56F8323EVM;
however, less than 500mA is required by the EVM. The remaining current is available for custom
control applications when connected to the Daughter Card connectors. The 56F8323EVM
provides +5.0V DC regulation for the CAN interface and additional regulators. The
56F8323EVM provides +3.3V DC voltage regulation for the processor, memory, D/A, ADC,
parallel JTAG interface and supporting logic; refer to
Figure
2-7. Additional voltage regulation
logic provides a low noise +3.0V DC voltage reference to the controller’s A/D V
.
REFH
Optionally, the processor’s A/D V
voltage can be provided by the +3.3VA supply on the
REFH
board by removing U15 and adding a 10 ohm resistor at R83. A jumper, JG11, and resistor, R68,
are provided to allow the analog and digital grounds to be isolated on the 56F8323EVM board.
This allows the analog ground reference point to be provided on a custom board attached to the
56F8323EVM’s Daughter Card connectors. By removing R68, the AGND reference is
disconnected from the 56F8323EVM’s digital ground. By placing a jumper in JG11 or by
reinstalling R68, the AGND is reconnected to the 56F8323EVM’s digital ground. Power applied
to the 56F8323EVM is indicated with a Power-On LED, referenced as LED13. Optionally, the
user can provide the +2.5 DC voltage needed by the controller’s core on connector J14 and
disable the on-chip CORE voltage regulator by removing the jumper on JG12. Additonally, four
0 ohm resistors or shorting wires must be added at R70, R71, R72 and R73, to allow the external
+2.5V DC to pass to the 56F8323.
MC56F8323EVM User Manual, Rev. 2
2-12
Freescale Semiconductor
Preliminary