Hi-Link HLK-B40 - Page 5

User Manual
HLK-B40
Pins
Symbol.
IO
Type
Functions
1
GND
GND
Power source
2
MIC_BIA
-
Keep the functionality
3
MIC_IN
-
Keep the functionality
4
VMID
-
Keep the functionality
5
AOUT_P
-
Keep the functionality
6
AOUT_N
-
Keep the functionality
7
RESET
I
Reset restart module, high level is effective,
8
VCHG
PWR
Charger input, prohibited without battery
9
VBAT
PWR
The power supply is input to DC3.3V and the
10
GND
GND
Power source
11
VDDIO
-
Keep the functionality
12
PD7
-
Keep the functionality
13
PD6
-
Keep the functionality
14
PD5
-
Keep the functionality
15
PD4
-
Keep the functionality
16
PC7
O
Module Sleep State Output, High: Full Speed,
17
PC6
I
Module Hibernation
Control Input High: Go into hibernation, Low:
Exit Hibernation, Suspend as High
18
PC5
I
Function key input, low level is valid,
suspension is high
19
PA3
-
Keep the functionality
20
PA2
-
Keep the functionality
21
PA1
-
Keep the functionality
22
PA0
-
Keep the functionality
23
UART0_
O
The module serial output
24
UART0_
I
Module serial input