KIT33810EKEVME Evaluation Board User’s Guide
, Rev. 3.0
4
Freescale Semiconductor
Introduction
The Block Diagram for the 33811 Evaluation Board is shown below:
Figure 1. EVB Block Diagram
The EVB consists of a 33810 Injector, Ignition Driver (IID) circuit, a USB to SPI interface, a voltage regulator and
power conditioning circuit, a set of 9 Input Jumpers, and 4 IGBTs with voltage and current sensing circuitry. All 5 volt
power required by the EVB is obtained from either the USB, MON08 connectors or the on-board 5 Volt regulator . A
5 position jumper selects which source provides the 5 volt power for VCC (and VDD).
LED DISPLAY
The LED’s are provided as a visual output device for the USB-SPI interface. As configured from the factory, LED 2
indicates when power is applied and a USB connection is established, and LED 1 and 3 are tied to the DATA0 and
CNTL0 lines, respectively, which can be toggled via the SPIGen program.
I/O JUMPER DEFINITIONS (J3)
The EVB contains nine jumpers that connect the parallel outputs of the USB SPI interface to the 33810 inputs as
follows:
USB-SPI Output
33810 Input
Function
DATA0 DIN0 Injector
Input
0
DATA1
DIN1
Injector Input 1
DATA2
DIN2
Injector Input 2
MC33810
USB
To SPI
Injectors
Ignition
IGBTs (4)
And I/V Sense
Circuitry
4
4
4
USB FROM/
TO PC
SO, SI, CSB,
SCLK
4
SPI
Port
DIN1-3
GIN1-3
OUTEN
LEDs
9 parallel
control lines
9
Jumpers
NOMI
MAXI
SPKDUR
OUT1-3
GD1-3
6
FB1-3
RSP, RSN
Voltage Regulator and
Power Conditioning
VBat
2
VPWR,
VDD
Spark Coils
TO MCU
3
