Freescale Semiconductor KIT33814AEEVBE, Руководство пользователя

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KT33814UG User’s Guide Rev. 2.0 4/2013
Freescale Semiconductor 11
Evaluation Board Hardware Description
11.1 LED Display
Nineteen LED’s are provided as visual output devices for the MC33814 EVB board. A list of the LED
devices is shown below:
1. VPWR LED - Indicates when a +12 volt supply is connected to the EVB.
2. VPP LED - Indicates that the VPP Pre-regulator is sup6.5 volts to the two +5.0 volt regulators, VCC and
VPROT.
3. VCC LED - Indicates that the MC33814 in5.0 volt regulator is running and providing the +5.0 volt VCC
voltage supply.
4. VPROT LED - Indicates that the VPROT +5.0 volt regulator is turned on and is supplying 5.0 V.
5. KEYSW LED - Indicates when the Keyswitch is turned on sup12 V to the KEYSW input.
6. IGNOUT1 LED - Indicates that the Ignition input, IGNIN1 or SPI bit is active, and the Ignition 1 output driver is
turned on.
7. IGNOUT2 LED - Indicates that the Ignition input, IGNIN2 or SPI bit is active, and the Ignition 2 output driver is
turned on.
8. O2HOUT LED - Indicates that the O2HIN input, or the SPI bit is active, and the O2 Heater Driver output driver is
turned on.
9. INJOUT1 LED - Indicates that the Injector 1 input, INJIN1 or SPI bit is active, and the Injector 1 output is pulled
low.
10. INJOUT2 LED - Indicates that the Injector 2 input, INJIN2 or SPI bit is active, and the Injector 2 output is pulled
low.
11. ROUT1 LED - Indicates that the Relay 1 input RIN1, or SPI bit is active, and the Relay 1 output is pulled low.
12. ROUT2 LED - Indicates that the Relay 2 input RIN2, or SPI bit is active, and the Relay 2 output is pulled low.
13. LAMPOUT LED - Indicates that the Lamp SPI control bit is active and the LAMPOUT pin is pulled low.
14. VRSOUT LED - Indicates that there is activity on the VRSN and VRSP pins, and that the VRS circuit has
detected a valid VRS signal.
15. TACHOUT LED - Indicates the state of the TACHOUT output signal.
16. MRX LED - Indicates the state of the MRX line as a result of the data on the ISO9141 line.
17. BATSW LED - Indicates the state of the on-board Key Switch. When the Key Switch is ON the BATSW LED is
ON.
18. USB LED - Indicates that the USB SPI dongle is connected properly and is attached to an active USB port on a
PC.
19. ISO9141 LED - Indicates the state of the ISO9141 line. When this LED is ON, the ISO9141 line is LOW and
when the LED is OFF, the ISO9141 line is HIGH.
11.2 Test Point Definitions
The EVB contains twenty five (25) test point jumpers that provide access to certain signals in the
MC33814 as follows:
1. VPWR - 12 volts (VBAT minus Schottky diode drop)
2. GND - 0.0 volts