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H330S Hardware User Manual
Page 17 of 44
Pin #
Pin Name
I/O
Reset
Value
Idle
Value
Description
High Speed SIM Interface
9
High speed SIM card USB
(Temporarily not supported)
10
USIM_D-
High speed SIM card USB signal -
(Temporarily not supported)
Audio Interface
13
AUXO+
O
Speaker output
14
AUXO-
O
Speaker output signal -
15
EAR-
O
Earphone signal output -
16
EAR+
O
Earphone signal
17
MIC+
I
Main MIC input
18
MIC-
I
Main MIC input signal -
19
AUXI-
I
Auxiliary MIC input signal -
20
AUXI+
I
Auxiliary MIC input
21
AGND
GND
Analog GND
22
VSPK
I
Power supply input for the internal power
amplifier of audio codec chip,
Advise to connect VBAT.
I
2
S
11
I2S2_CLK1
O
PD
PD
I2S2 serial clock SCLK1
24
I2S2_CLK0
O
T
T
I2S2 serial clock SCLK0 (Default: CLK0)
25
I2S2_WA0
O
T
T
I2S2 field selection signal
26
I2S2_TX
O
T
T
I2S2 serial data output
27
I2S2_RX
I
T
T
I2S2 serial data input
③
USB
31
USB_DP
I/O
USB data
32
USB_DM
I/O
USB data signal-
33
USB_ID
—
USB ID signal
34
VUSB
I
USB Power Input
