Shenzhen Coban Electronics Co. Ltd. CB900 Manuale Utente
2A
9
GPIO81
I/O
General Purpose IO
Not to float
10
ADC1
I
Analog to digital conversion
Not to float
11
BACKUP
I/O
Backup battery pin
Not to float
12
GND
13
MIC-
I
Audio Input channel 1
Not to float
14
MIC+
15
XMIC
I
Audio Input channel 2
16
SPK+
O
Audio Output channel 1
17
SPK-
18
MP3_R
O
Audio Output channel 2
19
MP3_L
20
GND
21
GPIO18
I/O
General Purpose IO
Not to float
22
VCHG
I
Charging Pin
Not to float
23
GND
24
USB_DP
I/O
USB data cable positive signal
Not to float
25
USB_DM
I/O
USB data cable negative signal
Not to float
26
GND
27
VSIM1
O
SIM card supply voltage
SIM card
into the
module line
should not
exceed 20cm
28
SIM1_CLK
O
SIM card clock line
29
SIM1_RST
O
SIM card reset line
30
SIM1_DATA
I/O
SIM card data cable
31
VMC
O
SD card power cable
Not to float
32
MCDA0
I/O
SD card data cable
Not to float
33
MCDA2
I/O
SD card data cable
Not to float
34
MCCM0
I/O
SD card command line
Not to float
35
MCDA3
I/O
SD card data cable
Not to float
36
MCCLK
I/O
SD card clock line
Not to float
37
MCDA1
I/O
SD card data cable
Not to float
38
MCINS
I/O
SD card insertion detection line
Not to float
39
LSA0DA0
I/O
LCD address line
Not to float
40
LSCK0
I/O
LCD clock line
Not to float
41
LSCE0B0
I/O
LCD chip select line
Not to float
42
LSDA0
I/O
LCD data address line
Not to float
43
LSRSTB0
I
LCD reset line
Not to float
44
LSDIO
I/O
LCD data cable
Not to float
45
VIO18
O
LCD power
Not to float
46
VIO28
O
47
LCM_LED-
O
LCD backlight
Not to float
48
GPIO45
I/O
General Purpose IO
Not to float