KT33816UG User’s Guide Rev. 3.0 1/2014
Freescale Semiconductor
9
Evaluation Board Hardware Description
11.1
LED Display
Five LED’s are provided as visual output devices for the MC33816 EVB. A list of the LED devices is
shown by the following:
1.
+3.3 V LED
- Indicates that the +3.3 volt regulator is running.
2.
FLAG0 LED
- Indicates that the digital FLAG 0 output is a logic 1.
3.
FLAG1 LED
- Indicates that the digital FLAG 1 output is a logic 1.
4.
FLAG2 LED
- Indicates that the digital FLAG 2 output is a logic 1.
5.
+5.0 V LED
- Indicates that the +5.0 volt regulator is running.
6.
USB_PWR LED
- Indicates that the USB SPI dongle is connected properly and is attached to an active USB
port on a PC.
11.2
Test Point Definitions
The EVB contains forty-six (46) test points that provide access to certain signals in the MC33816 as
follows:
1.
+3.3 V
- +3.3 Volt regulator output
2.
+5.0 V
- +5.0 Volt regulator output
3.
VCCP
- VCCP device pin
4.
VCCIO
- VCCIO device pin
5.
VBAT
- VBAT device pin
6.
PGND
- power ground
7.
VBOOST
- DC-DC convertor output, 0 to 72 V
8.
DGND
- digital ground
9.
CLK
- CLK device pin for external clocking
10.
RESETB
- RESETB device pin for reset
11.
DRVEN
- DRVEN device pin for enabling the pre-drivers
12.
IRQB
- IRQB device pin, output for MCU hardware interrupt
13.
MISO
- MISO device pin for SPI for data out
14.
MOSI
- MOSI device pin for SPI for data in
15.
SCLK
- SCLK device pin for SPI clock
16.
CSB
- CSB device pin for SPI chip select
17.
START1
- START1 device pin for injector 1 (INJ1) output control
18.
START2
- START2 device pin for injector 2 (INJ2) output control
19.
START3
- START3 device pin for injector 3 (INJ3) output control
20.
START4
- START4 device pin for injector 4 (INJ4) output control
