CEM600 EVDO Mini PCIE Module Hardware User Guide
Shang Hai YUGE Information Technology co., LTD
Page 10 of 25
Chapter 4 Interface definition
The CEM600 module interface definition is shown in the following table:
Table 4-1 Interface definition
Pin Standard
Pin definition
Pin definition
I/O
properties
Description
1
WAKE#
MIC_P
Analog input Analog
audio
input
positive
terminal (optional feature)
2
3.3Vaux
VCC_3V3
Power input
3.3V main power supply
3
COEX1
MIC_N
Analog input Analog
audio
input
negative
terminal (optional function)
4
GND
GND
Ground
5
COEX2
EAR_P
Analog
output
Analog audio output positive
terminal (optional feature)
6
1.5V
NC
Unused
7
CLKREQ#
EAR_N
Analog
output
Analog audio output negative
terminal (optional function)
8
UIM_PWR
VREG_RUIM
Power Output RUIM card power supply
9
GND
GND
Ground
10
UIM_DATA
RUIM_DATA
Two way
RUIM card data
11
REFCLK-
UART1_RXD
Input
UART1 data reception (optional
function)
12
UIM_CLK
RUIM_CLK
Output
RUIM card clock
13
UART1_TXD
Output
UART1 data transmission (optional
function)
14
UIM_RESET
RUIM_RESET
Output
RUIM card reset
15
GND
GND
Ground
16
UIM_Vpp
NC
Unused
17
Reserved
UART1_RI_N
Output
Ringing indication signal
18
GND
GND
Ground
19
Reserved
INT1_IN
Input
Interrupt input, "low" is valid
(optional function)
20
W_DISABLE# W_DISABLE_N Input
RF inhibit control, "low" effective
21
GND
GND
Ground
22
PERST#
RESIN_N
Input
Reset control, "low" is valid
23
PERn0
UART1_CTS_N Input
UART1 is ready to send
24
3.3Vaux
VCC_3V3
Power input
3.3V auxiliary
power
supply
(optional function)
25
PERp0
UART1_RFR_N Output
UART1 request to send
26
GND
GND
Ground
27
GND
GND
Ground