Doc Title
Linkplay WiFiAudio-A76 Specification
Number
WMB20170117
Version
1.2
Document No.: WMB20170117
Page 8 of 21
external pull-up required
41
GPD1
I/O
General purpose input output,
external pull-up required
I2C2_SDA
42
GPD3
I/O
General purpose input output,
external pull-up required
UART1_TXD
43
I2S_MCLK
I/O
I2S master clock
44
I2S_BCLK
I/O
I2S bit clock
45
I2S_DI
I
I2S data input
46
I2S_LRCLK
I/O
I2S L/R clock
47
I2S_DO
O
I2S data output
48
GPB5
I/O
General purpose input output,
external pull-up required
49
GPD2
I/O
General purpose input output,
external pull-up required
UART1_RXD
50
GPB21
I/O
General purpose input output,
external pull-up required
51
GPD0
I/O
General purpose input output,
external pull-up required
I2C2_SCL
52
PWRON
O
Power on output
53
GPB25
I/O
General purpose input output,
external pull-up required
Internal development only
55
USB_DP
I/O
USB data plus
56
USB_DM
I/O
USB data minus
Table 2-1 Linkplay A76 module pin description
Notes:
1.
I
：
Input
2.
O
：
Output
3.
P
：
Power
4.
PU
：
Internal Pull Up
5.
PD
：
Internal Pull Down
2.2.
Mechanical Dimension
Linkplay A76 module has the dimension of 41.7mm x 32.2mm. The detailed layout will be given shortly below.
Unit: mm
