User's Manual

Page 7 of 31
Table 2-2 The definition of board to board connector
SN Definition Description Remark
1
VBAT
Power Supply
2
VBAT
Power Supply
3
VBAT
Power Supply
4
VBAT
Power Supply
5
VBAT
Power Supply
6
VBAT
Power Supply
7
GND
Ground
8
GND
Ground
9
MIC_P MIC Data+
MIC Interface
10
USB_DM USB Data-
USB Interface
11
MIC_N MIC Data-
MIC Interface
12
USB_DP USB Data+
USB Interface
13
GND
Ground
14
GND
Ground
15
EAROP Earphone Data+
Earphone Interface
16
GND Ground
17
EARON Earphone Data-
Earphone Interface
18
USIM_RESET USIM Reset
USIM Interface
19
GND
Ground
20
USIM_DATA USIM Data
USIM Interface
21
VREG_EXTUSIM USIM Power
USIM Interface
22
GND Ground
23
PCM_DOUT/GPIO[103] PCM Data Output
PCM Interface
, can be used as GPIO
24
PCM_CLK/GPIO[80] PCM CLK
PCM Interface
, can be used as GPIO
25
PCM_DIN/GPIO[14] PCM Data Input
PCM Interface
, can be used as GPIO
26
GND Ground
27
GND Ground
28
HKADC
External analog signal
detecting