Freescale Semiconductor FRDM-17C724-EVB, User Manual

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KTFRDM17C724UG, Rev. 1.0
Freescale Semiconductor 7
Getting to Know the Hardware
3.6 LED Display
An LED is provided as a visual output device for the FRDM-17C724-EVB evaluation board:
3.7 Test Point Definitions
The following test-points provide access to signals on the FRDM-17C724-EVB. These signals are:
3.8 Input Signal Definitions
The MPC17C724 IC has five input signals that are used to control certain outputs or functions inside the circuit. These signals are:
Table 3. Board Description
Name Description
LED1 (D4 board designator)
Illuminated with an output from the FRDM-KL25Z. Note the on board voltage regulator must
be operating for the LED to operate
Table 4. Test Point Definitions
TP# Signal Name Description
TP1 GND Ground
TP2 OUT2A H-Bridge 2 Output A
TP3 OUT2B H-Bridge 2 Output B
TP4 OUT1A H-Bridge 1 Output A
TP5 IN1A H-Bridge 1 Input A
TP6 IN1B H-Bridge 1 Input B
TP7 PSAVE Standby/Enable pin
TP8 READY Logic signal from microcontroller. This signal causes the green LED to operate
TP9 SNSIN Not Used
TP10 ANLIN Not Used
TP11 VDDPWRGOOD Signal to the Microcontroller indicating the voltage regulator is operating (3.3 V)
TP12 IN2A H-Bridge 2 Input A
TP13 IN2B H-Bridge 2 Input B
TP14 OUT1B H-Bridge 1 Output B
TP15 VDD Logic Power Supply from the voltage regulator on the evaluation board
Table 5. Input Signal Definitions
Name Description
IN1A Controls OUT1A
IN1B Controls OUT1B
IN2A Controls OUT2A
IN2B Controls OUT2B
PSAVE Enables Outputs 1A, 1B and Outputs 2A, 2B