Wi-Fi&BT Module Series
FC21 Hardware Design
FC21_Hardware_Design 21 / 52
3.5.1.1. WAKE_ON_WIRELESS
WAKE_ON_WIRELESS is used to wake up the EC2x&EG2x-G module. When the pin is pulled down,
EC2x&EG2x-G can be woken up.
Table 6: Pin Definition of WAKE_ON_WIRELESS
3.5.1.2. WAKE_EN
WLAN_EN is used to control the WLAN function of FC21. When WLAN_EN is at high level voltage, Wi-Fi
function will be enabled.
Table 7: Pin Definition of WLAN_EN
WLAN_EN is a sensitive signal, and therefore, WLAN_EN should be ground-shielded and routed as
close as possible to FC21 module.
Pin Name
Pin No.
I/O
Description
Comment
WAKE_ON_WIRELESS
32
OD
Wi-Fi wake up the
host
1.8V power domain.
Active low.
Require external pull-up
to 1.8V.
If unused, keep this pin
open.
Pin Name
Pin No.
I/O
Description
Comment
WLAN_EN
9
DI
Wi-Fi function control
1.8V power domain.
Active high.
NOTE