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M 6 8 E V B 9 1 2 C 3 2
PWR - Power Jack
PWR provides the default external power input to the board.
standard 2.0 ~ 2.1mm center barrel plug connector (positive voltage center) to provide the
+VIN supply of +6 to +20VDC (+9VDC typical).
+Volts, 2mm center
TB1 - Power Access Term Block
TB1 provides access to either apply or tap the +VIN power source to the EVB or to tap the +5V
regulated supply for external application. User may apply up to 100ma of +5V to external
circuits with a 9VDC +VIN supply. +VIN supply application to user circuits is determined by the
+VIN source supply rating or 1 Amp, whichever is greater.
TB1
+VIN
GND
+5V
VDDR_EN
The VDDR_EN option is hardwired by circuit trace to enable the MC9S12C32 internal 2.5V
regulator. The user should not need to modify this connection.
RESET and RESET Configuration
Operation of the MC9S12C32 during RESET condition allows several options to be configured.
These options include Mode of operation, memory configuration, clock source, and
development mode selection. The Mode of operation including development modes is defined
by the MODA, MODB, and MODC option jumpers. Memory configuration of the internal flash
is provided by the ROM_EN option. Refer to the Oscillator X1 and Y1 chapter for clock source
configuration.
Freescale Semiconductor, Inc.
8
For More Information On This Product,
Go to: www.freescale.com
0 5 / 1 5 / 0 3
The PWR jack accepts a
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