Cavli Wireless C16QS - Switching Machine Reset Mode; Turn on Module; Figure 5 Power-On Reference Circuit

24
www.cavliwireless.com
C16QS Hardware Manual
Table 3-4 VDD EXT pin definition
3.4 Switching Machine Reset Mode
3.4.1 Turn ON Module
The 15
th
pin of the C16QS module is POWER_ON pin. The module can be powered on by pulling down the
POWER_KEY LOW for at least 500ms. The user can check whether the module is powered on by querying the
high and low levels of the VDD_EXT pin.
Table 3-5 Switch pin definition
Figure 5 Power-on reference circuit
Pin No.
Signal name
I/O
High value
Description
29
VDD_EXT
PO
1.8V
Power on
Pin No.
Signal name
I/O
High value
Description
15
PWRKEY_N
PI
VBAT
Active Low pin