Ebyte E104-BT30-TB1 User Manual page 6

Chengdu Ebyte Electronic Technology Co.,Ltd
20 SPI-PCM
21 LED2
22 LED0
23 PIO5
24 PIO2
25 PIO16
26 AIO0
27 GND
28 Reserve
29 Reserve
30 Reserve
31 Reserve
32 Reserve
33 PIO9
34 PIO7
VDD-PADS
35
36 1V8-SMPS
VDD-PADS
37
38 PIO8
39 PIO6
40 GND
41 MIC-AN
42 MIC-AP
43 LINE-BN
44 LINE-BP
45 MIC-BIAS
46 PIO0
47 SPK-LN
48 SPK-LP
49 SPK-RP
50 SPK-LN
51 PIO1
52 PIO21
Pay attention:
The function description of the above pins is only for the default program functions of our company. If you need other
functions, please contact us for customization. For the self-developed pin functions, please refer to the official user manual of
CSRA64215.
Chengdu Ebyte Electronic Technology Co.,Ltd
Copyright ©2012–2019，
I
O
O
I/O
I/O
I/O
I/O
P
O
O
O
O
O
I/O
I/O
P
-2
P
P
-1
I/O
I/O
P
I
I
I
I
I
I/O
O
O
O
O
I/O
I/O
SPI/PCM input selection, 0=PCM/PIO interface, 1=SPI
Bluetooth status indication LED2 driver output
Bluetooth status indication LED0 driver output
SPI-CLK debug load pin
SPI-MOSI debug load pin
Module audio output indication pin, high level is effective
Analog programmable I/O pin 0 (reserved function)
Ground, connect to power reference ground
Unused
Unused
Unused
Unused
Unused
Play / Pause Key input, high level effective
Volume + Key input, high level effective, long press to continuously
increase;
Input and output port power 2, usually 1.8V power connection
Module 1.8V power output, external decoupling capacitor is recommended, see
4.2 Recommended circuit for details
Input and output port power supply 1, usually 1.8V power supply connection
Previous song Key input, high level is effective
General-purpose I / O (reserved function)
Ground, connect to power reference ground
Channel A line or microphone input negative
Channel A line or microphone input positive
Channel B line input negative
Channel B line input positive
Microphone bias
Volume - Key input, high level effective, long press to continuously
decrease;
Left channel speaker output negative
Left channel speaker output positive
Right channel speaker output positive
Left channel speaker output negative
Next song Key input, high level is effective
General-purpose I / O (reserved function)
E104-BT30-TB1 User Manual
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