KIT33771TPLEVB evaluation board,
Rev. 2.0
NXP Semiconductors
9
Getting to know the hardware
3.6
VCOM LED
The VCOM LED is located on the board as shown in
Figure 4
.
Figure 4. VCOM LED
The VCOM LED indicates when the device is in normal mode. Upon reset, the MC33771 enters into normal mode (VCOM lights). If there
is no activity on the bus after a timeout period of 60 seconds, the device enters low-power idle mode (VCOM turns off). Once the device
is initialized, if no communication occurs on the TPL bus after 1 second, the device switches to sleep mode and the LED turns off (VCOM
off). Depending on the device settings, the VCOM LED may flash every second during cyclic acquisition.
VCOM LED