Reset; Power Supply; Schematic Diagram Of The Reset Interface; Schematic Diagram Of The Power Supply - Motorola 56F805 Hardware User Manual

Freescale Semiconductor, Inc.

Power Supply

2.9 Reset

Logic is provided on the 56F805 to generate a clean power-on RESET signal. Additional,
reset logic is provided to support the RESET signals from the JTAG connector, the
Parallel JTAG Interface and the user RESET push-button; see
Figure 2-7.
+3.3V
RESET
PUSHBUTTON
MANUAL RESET RESET
P_RESET
Figure 2-7. Schematic Diagram of the RESET Interface
2.10 Power Supply
The main power input, 12V DC at 4.0A, to the 56F805EVM is through a 2.1mm coax
power jack. A 4.0Amp power supply is provided with the 56F805EVM; however, less
than 500mA is required by the EVM. The remaining current is available for user motor
control applications when connected to an optional motor power stage board. The
56F805EVM provides +3.3V DC voltage regulation for the device, memory, D/A, CAN,
parallel JTAG interface and supporting logic; refer to 2-8. Power applied to the
Figure
56F805EVM is indicated with a Power-On LED, referenced as LED10.
+12V DC
+5.0V DC
+3.3V DC
+3.3V
+5.0V
56F805
Regulator
Regulator
56F805EVM
PARTS
Figure 2-8. Schematic Diagram of the Power Supply
MOTOROLA Technical Summary 2-11
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