Table of Contents
Advertisement
3.5.14 Main Board - S3 Power ON / OFF
The Power ON / OFF switch (S3) is connected to PWRON signal of TPS65950
device. This can be configured in software to switch ON or OFF the system.
Setting
OPEN
PUSH BUTTON CLOSED
Table 30:
3.5.15 Main Board – Keypad Switches
4 x 4 Matrix keys are used for user functional buttons. All the keys are placed
on the top of the board. The image of these keys is shown in the figure below.
Function
Normal operating condition. Open = logical '1' state
Active low signal will enable PWRON signal of TPS65950
device.
Closed = logical '0' state
Power Module ON/OFF Push Button
Figure 26:
Key pad Switches
60
Hardware User Guide
Keypad
Advertisement
Table of Contents
