3.2.2 Interface definition
Input and output parameter definition
IO
Bidirectional input and output
PI
Power input
PO
Power output
AI
Analog input
AO
Analog output
DI
Digital input
DO
Digital output
PIN definition
PIN
Standard PIN definition
Module PIN definition
IO
Function
Remarks
1
WAKE#
MIC+
AI
Audio input+
2
3.3Vaux
VBAT
PI
Power input
3
COEX1
MIC-
AI
Audio input-
4
GND
GND
GND
5
COEX2
SPK+/REC+
AO
Audio
AT set headset and speaker mode
6
1.5V
UIM_DET
DI
SIM Hot plug detection
7
CLKREQ#
SPK-/REC-
AO
Audio output-
AT set headset and speaker mode
8
UIM_PWR
UIM_PWR
PO
SIM power
9
GND
GND
GND
10
UIM_DATA
UIM_DATA
IO
SIM data signal
11
REFCLK-
UART_RX
DI
UART receiving
12
UIM_CLK
UIM_CLK
DO
SIM clock signal
13
UART_TX
DO
UART sending
14
UIM_RESET
UIM_RESET
DO
SIM reset signal
15
GND
GND
GND
16
UIM_VPP
NC
17
RESERVED
VDD_EXT
PO
1.8V power output
18
GND
GND
GND
19
RESERVED
WAKEUP_IN
DI
Sleep mode controlling
20
W_DISABLE#
RESERVED
RESERVED
21
GND
GND
GND
22
PERST#
RESET
DI
Reset controlling
Low level effective
Содержание CLM920
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