KT33814UG User’s Guide Rev. 2.0 4/2013
12
Freescale Semiconductor
Evaluation Board Hardware Description
3. VPP - 6.5 volts
4. VCC - 5.0 volts
5. VPROT - 5.0 volts
6. BATSW - 0 or 5.0 volts depending on the state of KEYSW
7. KEYSW - 0 or 12 volts depending on the state of KEYSW
8. ISO9141 - 0 or 12 volts depending on the state of MTX
9. MRX - 0 or 5.0 volts depending on the state of ISO9141 line.
10. VRSOUT - 0 or 5.0 volts depending on the VRSN and VRSP inputs
11. TACHOUT - 0 or 5.0 volts depending on VRSOUT or internal SPI bits.
12. LAMPOUT - 0 or 12 volts depending on the SPI bits
13. ROUT2 - 0 or 12 volts depending on RIN2 or internal SPI bits.
14. ROUT1 - 0 or 12 volts depending on RIN1 or internal SPI bits.
15. INJOUT2 - 0 or 12 volts depending on INJIN2 or internal SPI bits.
16. INJOUT1 - 0 or 12 volts depending on INJIN1 or internal SPI bits.
17. COIL2 - 0 or 12 volts depending on IGNIN2 or internal SPI bits.
18. COIL1 - 0 or 12 volts depending on IGNIN1 or internal SPI bits.
19. O2HFB - 0 or 12 volts depending on O2HOUT or internal SPI bits.
20. VRSN - -0.3 to 5.0 volts (clamped internally) from VRS low side.
21. VRSP - -0.3 to 5.0 volts (clamped internally) from VRS high side.
22. O2HSENSN - Ground side of O2H driver current sense resistor (0.02 ohms)
23. O2HSENSP - High side of O2H driver current sense resistor (0.02 ohms)
24. IGNSENSN - Ground side of IGN1/2 driver current sense resistor (0.02 ohms)
25. IGNSENSP - High side of IGN1/2 driver current sense resistor (0.02 ohms)
11.3
Input Signal Definitions
The MC33814 has nine logic level input signals that are used to control certain outputs or functions inside
the circuit. These nine signals are:
1. O2HIN - Controls the O2 Heater Pre-Driver output
2. IGNIN1 - Controls the Ignition 1 Pre-Driver output
3. IGNIN2 - Controls the Ignition 2 Pre-Driver output
4. INJIN1 - Controls the state of the INJOUT1 output
5. INJIN2 - Controls the state of the INJOUT2 output
6. RIN1 - Controls the state of the ROUT1 output
7. RIN2 - Controls the state of the ROUT2 output
Содержание KIT33814AEEVBE
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